Thursday 29 October 2009

charge Batteries

Cordless Drill Batteries
To all those nay-sayers insisting that using NiMh batteries as a substitute for NiCads is dangerous or will give poor results. I just want to post my Actual Experience compared with your 'theories'. It's been two years since I performed this mod, and I have had NO troubles. The batteries have out-performed the original batteries in terms of run-time and overall life of the cells themselves. I have not recorded test data on the run-time, but I would estimate that the run-time is about twice that of the originally battery pack. Both of the original NiCad packs refuse to hold a charge for any reasonable amount of time within a year of purchase (that is what inspired the mod).(Cordless Drill Battery) I mentioned my accidental reverse polarity charging accident in another comment below (over a year ago), but even with that abuse, the same NiMh batteries are still going strong.As for charging the batteries - everyone has their theory about charging, but I'll say that I've been using the original NiCad charger without any modification. My reason is two-fold. first: The original inspiration for this mod was to SAVE money and get longer run-time on the drill. (My $24 investment has been successful )nest: The supplied Nicad Charger was designed to charge a lower capacity battery, so it's charge rate is significantly LOWER that the what the higher capacity NiMh batteries require. I estimated that the charge time needs to be increased to about 28 hours due to the lower charge rate.I have not been very diligent to un-plug the charger after the required charging period, but still the battery pack lives on. (It's not even warm while charging).Sure, I could acquire a NiMh charger and get a more efficient charge, but so far, it has met my needs (Cordless Drill Battery). If you really need a quick charge then I would recommend investing a NiMh charger. The NimH chargers have special circuitry to determine when the charge is complete and shut off the charger.As for potential danger... I can understand concern here - we've all heard stories about laptop batteries causing fires. You certainly don't want to burn down your house on any project, but since the battery and charger don't even get warm, I must assume that nothing is being stressed beyond normal use. I would be cautious and monitor the first attempt at charging - and always keep the charger away from flammables - perhaps in the middle of a concrete floor.Or... If you want... you can pay top dollar and get a new lousy NiCad battery pack (Cordless Drill Battery) - or discard the whole thing and buy a shiny new one, but you wouldn't need an instructable for that! )
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Tuesday 27 October 2009

Beginning with one battery we can change our future

In November 2005, SANYO( SONY Laptop Batteries) released the "eneloop" rechargeable battery which can be reused 1,000 times. Batteries are a silent force behind our convenient and affluent lifestyle. When we look around, there are innumerable items that are powered by batteries, such as remote controls, cameras, toys, and lighting equipment.(Cordless Drill Battery)

Because batteries are being used in such large numbers, we want people to use batteries "Over and Over" in consideration of the global environment. SANYO, as it aims to become a "leading provider of Environment- and Energy-related products," promotes innovative manufacturing (Monozukuri) to bequeath a beautiful Earth to future generations. "eneloop" is one of the products in which SANYO's vision is embodied.

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How to implement the battery of environmental education

How to implement the battery of environmental education

1, subjects produced
Life is an all-encompassing textbook, which is rich in teaching resources. As teachers, we provide students with a stage for how much the children have much room for development.
In March of this year, our school students to play popular four-wheel, a small car tied 4 5 batteries, 1 yuan four low-quality batteries quickly became a waste battery power consumption end, almost every time down can be found in garbage bin of waste batteries from the sight of, and used batteries thrown into the trash seems to be right and proper thing, no one cares about us. One day, we are classes led by Health Commissioner Liu Xiaowen Several students rushed to hold a book came to me the book, Liu Xiaowen classmate's mother to buy Amway products, manufacturers complimentary promotional album, album of the back there is a public service ads, content is "readily fling the price is 5 square meters of land to withstand 50 years of heavy metal pollution." Students are very interested in this ad, I also think this is a valuable curriculum resources, so we practice in an integrated class raised their hands through this comprehensive practical activities of the theme of --- Batteries and environmental protection.
Second, the design concepts and ideas
Through a comprehensive practical activities, students of social life, positive attitude and interest in participating in the comprehensive practical activities; understanding of information technology, skills, community service and explore the activities of some common sense; so that students have a basic living skills, communication collaboration to observe the analytical ability, hands-on practical ability as well as the integrated use of knowledge, ability and innovation; initial grasp to participate in social practice and investigative methods, information collection, analysis and processing methods and research to explore, experiment empirical methods; gain hands-on comprehensive practical activities involved in the positive experience and a wealth of experience, initially to cultivate cooperation, sharing, motivated, good personality traits to form a love of nature and society, self-responsibility.
I look forward to achieve the objectives of the following activities:
1, knowledge and skills.
(1) Understanding the types of cells to understand the hazards of waste batteries, the batteries have an initial understanding.
(2) the search for, collect, collate, experiments and other practical activities to enhance the students to find, collect, collate information; and initial perception research questions the general steps and methods.
(3) through interviews, discussions, exchanges, students oral communication skills, and social communicative competence.
2 、 2, emotions, attitudes and values
(A) was personally involved in comprehensive practical activities, the positive experience and a wealth of experience, shaping the perfect personality.
(2) guide the students to foster a concern for human living environment, constraints, their behavior and habits, proper use of the battery, pay attention to protecting the environment, enhance the sense of social responsibility.
(3) to encourage students to express individuality and creative thinking, develop a preliminary sense of innovation and innovative practical abilities.
3, Events
Time roughly a month, in four phases.
1, determine the subject. Identification of sub-topics, the students form a free combination of the activities of groups, each group to discuss and formulate the most practical in a program of proposed activities.
2, group research. The use of books, field trips, networking and other information channels to try to explore the nature of learning, can take advantage of the simple tables, graphs, statistics and other methods collate relevant information.
3, on the outcome. To choose their own good way (graphics, photography, language, writing, etc.) expression research process and results.
4, summary evaluation. Form conclusions, evaluation, reflection and an extension of their activities.
Third, activity-specific implementation process
Phase Identification of themes
An active process:
1, to establish the theme
(1) The practice of carrying out a comprehensive set the theme of our own, we have any good suggestions;
(2) Health Members: Recently our class to my students the hands of special interest in this ad, I suggest that we in this sub-theme of the event to study the relationship between the battery and environmental protection, agreed to please raise their hands!
Unanimously adopted by the whole class raised their hands.
2 to discuss the research direction
The theme of the activities of the specific implementation can be divided into the following areas conduct a research study: (1) recognize a wide variety of batteries; (2) to investigate the use of the battery; (3) How can we prove whether the used batteries to the environment hazards; (4 ) Understanding the hazards of waste batteries; (writing on the blackboard).
3, the formation of Activities Sub-Committee
According to their interests, hobbies, skills, and address the students free combination groups, democracy leader selected to determine the group name, group name, respectively inquiry team to investigate the group, experimental group, sanitation team. For the above four questions were studied.
4 to discuss the research methods
Through student discussion, summed up this way some of the research methods: (1) Internet search data (2) asked teachers, parents, students (3) can be on campus to interview (4) Production of the questionnaire (5) experiment to collect in kind. 5, each group according to the activities of place, time, content and distribution of work crew and other issues, the project will write the book.
Group study
1, mobilizing students to participate in the initiative.
2, keep abreast of the various study groups, and to be guided.
Reporting results
Leads to the subject.
Some time ago, we have jointly established a research project "batteries and Environmental Protection", and group research activities carried out, an appointment today to return research results, you are ready Mody do? Which team first reported?
2, experimental group reported: We designed two experiments experimental group to prove that there is a hazardous waste batteries.
Experiment 1, the dangers of animal waste batteries
We took three beakers, numbered 1, 2, 3, were added to 350 ml tap water, then placed in each beaker where two goldfish bought from the market. 1 hour before class in the 2 years into the beaker 2 Shredded 5 batteries, beakers, 3 years into the four Shredded scrap batteries. Now we have three beakers in the middle of the table, for everyone to see, on the 2nd beaker where the fish have become numb, dying, and 3 beaker where the fish is dead.
Experiment 2, the hazards of waste batteries to plants
A month ago, the school entrance from the waterways that they dug two years of the poppy flowers bloom almost the same time, planted in two pots containing the same soil, the month, every day we were given two potted in a No. pouring tap water, to the No. 2 pots poured the same amount of waste water, batteries, and now we have two potted shown to classmates, tap water irrigation of the No. 1 growing well, while the waste water irrigation, the No. 2 battery long dead flowers, roots has been decomposed.
The above two experiments can prove hazardous waste batteries on the animal and vegetable oils. Waste batteries and thus we conclude that the water will harm our humanity.
3, the team scrambled to report:
Our group's mandate is to investigate the whereabouts of waste batteries, as well as people to use the battery situation.
We found some used batteries are thrown in the trash, had been arbitrarily thrown into waterways where some have even become a first-year students in the hands of small toys.
Investigation team for the following four issues from May 9 began in the school of 100 students and 50 residents of the village launched an investigation:
1, an average week, how many batteries you? ( ( ) )
2 Jie following B, 2 ~ 4 Jie C, 4 ~ 6 Jie D, 6 knots
2, What do you think the use of more cost-effective battery? ( ( ) )
A, ordinary batteries B, rechargeable battery
3, you generally how to deal with used batteries? ( ( ) )
A, anywhere discarded B, thrown into bins C, thrown into battery recycling boxes
4, you know, used batteries to the environment is? ( ( ) )
A, know B, do not know C, know a bit about
They were four old calendar paper charts, survey results showed:
50% of the amount per week using the dry battery is about 2; a 85% choose to use regular batteries; and then run out of battery? Nearly 62% of people are thrown into the bin of their, and 57% of people do not know whether there are hazards around the battery scrap.
I then conducted interviews of the investigation team to investigate the activities of what is your deepest feelings?
4, sanitation team on
Sanitation team slide show
(1) Japan Kanagawa waste battery incident
November 9, 1939, Kanagawa Prefecture, Japan admitted to a general hospital in the brain of a man insane. 这 The man, when the disease is only beginning to face unexplained edema, three days after the swelling spread to the feet, 8 day visually impaired, talking to himself, constantly crying, and later developed into confusion, it is assumed that he was " crazy. " The man was taken to hospital after they were in extreme pain due to heart failure death. Since then, the deceased person residing in the same village has repeatedly appeared in 15 the same symptoms of the "crazy." This had attracted the attention of medical researchers. Kanagawa Prefecture Institute of Health through the investigation and autopsy, concluded that these "crazy" all died in heavy metal poisoning.
After the incident, the Japanese authorities on this incident in detail and found the deceased were drinking a certain shop around the three wells of water. One of the eight drinking water wells No. 1 and all their personal disease. Wells in the survey, is alarming that even well away from the No. 1 place within 5 meters of the 380 have been dug up decomposed waste batteries! Tracing the source, finally find out that 380 is the used batteries shops sell a new battery, after leaving the customer focus of waste batteries buried in the backyard, causing water pollution around the wells, which led to the tragedy.
(2) batteries contain heavy metals: mercury, manganese, zinc, cadmium, nickel, lead
(3) Waste batteries thrown soil in which the ingredients will penetrate into the soil and groundwater, once people eating contaminated land productivity of crops or drinking water contaminated by these toxic heavy metals will enter the human body slowly deposited on the grave threat to human health!
(4) high blood lead affect the kidneys, liver, nervous system and hematopoietic organs, interfere with renal function and reproductive function, and irreversible brain damage. Cause behavioral problems of children, low IQ, and concentration difficulties.
Mercury poisoning neurasthenic syndrome, autonomic dysfunction, as well as impatience, irritability, crying and other symptoms of severe poisoning occurs when the obvious personality changes, affective disorder, mental deterioration.
Nickel usually from dietary intake, is thought to be induced by lung and sinus cancer. Nickel poisoning mainly caused respiratory damage, severe consciousness vague or coma, complicated by myocardial injury.
(5) China's conditions and hazards of waste batteries
China's potential hazards of waste batteries can not be ignored, causing extensive attention of the whole society and concern. It is now almost a day in the social life is also inseparable from the battery. Based on China's annual consumption of the battery 7 billion -80 100 million calculations a year per capita consumption of 5-6 cells. The battery is the most commonly used mobile phones, music players, remote controls and so on. Take mobile phone for example, in China's more than 100 million mobile phone users, a user of at least a year to use two batteries, one year consumes more than 200 million only.
(6) The measurement of a bad battery on the 1st in the soil can make one square meter of land lost value in use.
A button battery can contaminate 600,000 liters of water, equivalent to the amount of drinking water a person's life.
(7) Please do not arbitrarily anatomical waste batteries, do not put the battery into the fire, because the battery is not only toxic and potentially explosive!
5 to explore the team on:
Inquiry panel slide show:
The battery is widely used, can be said that modern people can not live without the battery, there are many types of cells, through our research, we believe that the battery can be divided into three categories:
The first broad categories: disposable batteries, which mainly include zinc-manganese batteries, alkaline zinc-manganese batteries, zinc, silver button batteries.
Zinc-manganese batteries: Life in the popular No. 1 or 5, most of the kinds of dry batteries, such batteries for flashlights, radios and so on. As the skin from the composition of zinc, so the battery runs out, zinc skin susceptible to erosion wear Ershi electrolyte leakage, so the battery should be removed after use to prevent corrosion of electrical appliances.
Alkaline zinc-manganese batteries: The battery electrolyte is alkaline, with good electrical conductivity properties, the negative is extremely zinc pool, so it can be a continuous high-volume discharge, closed metal shell can prevent electrolyte leakage. 池。 So the battery is a traditional dry battery replacement products, but the price slightly higher than traditional batteries.
Zinc-silver button batteries: This Battery size is small, but superior performance of a large battery discharge, discharge voltage is stable, has been widely used in electronic watches, quartz, the computer CMOS battery.
The second largest category: rechargeable battery. It includes lead-acid batteries, alkaline nickel-cadmium batteries, nickel hydrogen batteries.
Lead-acid batteries: This is the most commonly used multiple batteries, now widely used in motorcycle and car.
Basic nickel-cadmium battery: This battery life and long charge and discharge can be recycled several times, shock resistance, vibration, self-discharge is small, it is widely used in daily life. For example, we use the Walkman and other small appliances are available in the kinds of rechargeable batteries.
Ni-MH battery: This battery life cycle of the outstanding advantage is that long, up to 10 years, the disadvantage is higher cost, higher self-discharge rate, and due to internal high pressure, so there is possibility of an explosion, but its use is very optimistic about the prospects. In the aerospace industry has been gradually replaced by nickel-cadmium batteries.
The third largest category: new battery. It consists of lithium batteries, fuel cells and so on.
Lithium Battery: Battery power is high and there is a wide temperature range of use, flat discharge voltage, small size, no electrolyte leakage. The battery power especially suited as a cardiac pacemaker. Lithium batteries can also be used to do high-performance cell phone batteries, laptop batteries.
Fuel Cell: This cell can be hydrogen, methane as fuel, work in the chemical energy of fuel directly into electricity, batteries, continuous operation and stability. Fuel cells are especially suitable for aerospace industry, first of all fuel-cell energy, high-quality light. Secondly, the product of fuel cells are mostly water, the crew treated for human consumption, can reduce weight.
6, teachers to add, I put the time I collected the data presented to students using courseware to see, mainly including: The very use of dry batteries, type, structure and principles of the major hazards of waste batteries, mercury batteries, the role and usage, Itai-itai disease and Minamata disease, the status quo of China's battery consumption, battery recycling and processing aspects.
If I repeat the information with classmates, they skip.
7, through this lesson to learn, you know what the battery have?
8, do you think, how can we the rational use of the battery?Learned so much new knowledge, you most want to do?
Summary evaluation of the fourth phase, after-school extension
Activities Objectives:
1, and further enhance environmental awareness and a small sense of civic responsibility, awareness and sense of responsibility will be translated into behavior.
2, the learning process for students to conduct a self-assessment, peer assessment.
3, through the awards to enhance the students self-confidence, and further stimulate students interest in study and exploration.
An active process:
1, self-summary
Student self-reflection, writing activities, feelings. To guide students to reflect on their own practical activities to stimulate their interest to participate in and enrich their life experience.
It also encourages students to activities, personality and talents into full play, to share the results and thinking, allowing students to self-improvement, self-development.
2, awards, awards
Pingchu team awards and individual awards. Practice of focusing on the process of assessment of students. Through self-assessment, peer assessment, so that they get a real self.
3, after-school extension
(1) to the people about the environmental hazards of waste batteries, so that people know how to deal with waste batteries.
(2) called on everyone to act, do not throw used batteries, writing written proposal to the initiative of teachers and students.
(3) The school set up battery recycling boxes, the students into the street market, made a flyer
4, my reflection:
Activities, explore the Internet to gather information on the Panel, to the library access to books, has collected 52 articles about carefully screened summarized these three out of eight kinds of batteries; investigation team into the bin, and fields, streets and lanes to find the whereabouts of waste batteries in the campus survey classmates and teachers at the school gate and visit the village to collect data in order to come out again made tables; experimental unit was designed and implemented the four experiments, from which selected out of two experiments Some of them took more than a month; Xie-chao, Liu Yupeng other four to make slides, but also used the camera, camera technologies.
The activities of the end, I let the kids do look at a comprehensive summary. Students talk about their own harvest, experience, face the self-confidence, pride in one cavity. They began to learn to use vision to explore the lives of looked familiar, began to get used to touch the reality of a small calculus topics; they began trying to "do" knowledge, began to collect, collate, analyze data, the research process. In fact, the children were concerned about has already gone beyond the scope of the present study, their attention has turned to the community, they have an interest in the learning of human beings. Although the data they collect might not be very accurate, come to the conclusion and recommendations may be biased, but they worry that the eyes, wrinkled brows, excited words, I clearly felt the dolphin boiling hearts have been filled with heavy responsibilities.
This practice, "active principle" has been fully manifested. First of all, ask questions, to develop plans to field investigations, reporting exchanges, to the activities of expansion, summation and reflection, the steps complete, well-organized, activities varied, to provide students with a vast space. Second, the practice is different from the text the main features of the course - the uncertainty in this activity have also been fully reflected. In the event the implementation process, often encounter some unexpected things, such as in schools and villages to the battery on the use of surveys, teachers and students did not have imagined being encountered in advance so much difficulty. To overcome the difficulties can not be determined in advance the process is a process of learning to practice, but also enhance the ability of students to solve practical problems an excellent opportunity to fully display the charm of the practice.
Through this activity, I completed a teaching philosophy of the distillation. I saw the kids who the great potential of energy, knowing the original should be done teaching. Teaching activities should also be carrying the concept into the classroom. Live up to the static knowledge, so that knowledge from books to go down, and loaded into the wisdom of life, and then placed in front of the kids loudly said to them: children, activities began! You surely can do it!
In this comprehensive practical activities, we also sincerely appreciate the important role of parents, their support for the campaign is very important. Comprehensive practical activities are not in the classroom can be completed, it has to come to the community, into society. This creates many problems, such as safety, time, etc., which require parental understanding and cooperation. Some of the parents do not like their children go out to participate in activities, although we have done a lot of work, but is subject to our continued efforts.
With the ongoing activities, we have encountered a lot of activities, such as when the students into community practice, all of them have excited, but in order for data processing, some group motivation is not high, even in "pass the buck" phenomenon. And then there are in the course of the questions and answers for students to deal with enough detail, randomness too, there is no activity with the purpose to judge. In the future work and life, I will continue to study diligently, and conscientiously sum up and reflect on, and further enhance their ability and level of guidance.

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Batteries and Environmental Protection

Batteries and Environmental Protection
Potential contamination of used batteries has caused widespread concern in the community. China is the world's number one dry battery producing and consuming nations, in China currently has more than 1,400 battery manufacturers in 1980, the production of dry batteries volume has surpassed the United States and the largest in the world first. In 1998 the production of dry batteries in China amounted to 14 billion, while the same year the world's total production of dry batteries is about 30 billion.
Such a large quantity of batteries, making a big problem exposed, that is, how to make so many batteries do not undermine the pollution of our environment. According to our survey, used batteries containing heavy metals as well as the waste acid, waste alkali and other electrolyte solution. If you arbitrarily discarded batteries will destroy the corruption of the water, erosion of our survival crops and land, our environment is facing a huge threat. If the one on the 1st cell in the ground and rotting, it's toxic substances make one square meter of land to lose value; throw a coin battery into the water, which contains toxic substances which killed more than 60 million liters of water body pollution , equivalent to a person's life, water; used batteries containing heavy metals cadmium, lead, mercury, nickel, zinc, manganese, etc., in which cadmium, lead, mercury is a great harm to human body substances. The nickel, zinc and other metal although to a certain range of concentration is a useful material, but in the environment over the limit, but will also harm the human body. Waste batteries leaking heavy metals can cause rivers, lakes, sea and other bodies of water pollution, endangering the survival of aquatic and water use, an indirect threat to human health. Waste acid, waste alkali and so on could contaminate the electrolyte solution, so that land acidification and salinization, which decker around us like a time bomb. Therefore, the collection and disposal of used batteries is very important, if disposed of improperly, may be on the ecological environment and human health, cause serious harm. Randomly discard used batteries is not only pollute the environment, is also a waste of resources. Some people forget an account to the country's annual production of 10 billion batteries, annual consumption of 156,000 tons of zinc, 226,000 tons of manganese dioxide, 2080 tons of copper, 27,000 tons of zinc chloride, 79,000 tons ammonium chloride, 4.3 million tons of carbon rod. Despite the advanced technology has given us the right direction, but the phenomenon of pollution in China's battery is still not optimistic. 。 Most of China's current domestic waste has been mixed with used batteries together into the ground, over time, after the battery into decay, heavy metal leaching, both could contaminate groundwater bodies, they could contaminate soil and finally through a variety of ways to enter the human food chain. Biological uptake of heavy metals from the environment through the food chain biomagnification role, level by level in the higher organisms tens of thousands of times more enriched in, and then enter the human body through the food chain, and in some organs savings cause chronic poisoning, Japan The Minamata disease is a typical case of mercury poisoning.
Batteries are generally divided into disposable batteries and rechargeable batteries. The main disposable batteries, including zinc-manganese batteries (zinc and manganese dioxide), zinc mercury batteries (zinc and mercury oxide) and lithium batteries and other several categories. The main rechargeable batteries include cadmium - nickel, iron - nickel, zinc - silver, zinc - air and lithium - iron sulfide and lead-acid batteries and so on. Our daily life is the most frequently used zinc-manganese batteries and zinc-mercury batteries, leaving the battery pollution is mainly caused by mercury (Hg) and cadmium (Cd).
Mercury Toxicity
Mercury, which are commonly called "mercury" is a liquid at room temperature the material, can prevent the battery in the cathode zinc oxide, this approach to improve the storage life of the battery. Thus, as early as in the previous zinc used in batteries to do extremely overcast almost all do a certain amount of mercury preservative. However, the chemical combination of mercury and mercury have the neurotoxicity of endocrine system, immune system, also have an adverse effect, it will trigger people's slurred speech, unsteady gait, limb paralysis, leading to generalized convulsions, mental disorders and died.
For a long time, China in the production of dry batteries, it is necessary to join a toxic substance - mercury or mercury compounds. China's mercury in alkaline batteries up to 1% ~ 5%, 0.025% neutral dry-cell batteries, dry batteries every year for the production of dozens of tons of mercury amounted to much. As technology advances, the battery began to implement a low mercury and mercury-free, mercury substitutes Forafac fluorinated polymer surfactants in preventing the corrosion of zinc has achieved good results.
Discarded mercury batteries in nature will slowly overflow from the battery into the soil or water, and then under the action of microorganisms, inorganic mercury can be transformed into methylmercury, gathered in the fish's body, the human consumption of such fish , the methylmercury enters the human brain cells, people's nervous systems were severely damaged, in serious cases would be crazy to death. Cadmium Toxicity
Cadmium is not a trace element necessary for the human body, the body of newborn babies, and there is no cadmium, but increased with age, and gradually accumulated. Cadmium with renal toxicity, which caused kidney damage is irreversible. At the same time after renal injury may also be secondary osteoporosis, osteomalacia and fractures. 在1993 In 1993, the International Union Against Cancer will be set at IA level carcinogen cadmium. For these reasons, many developed countries have recommended a ban on the use of nickel-cadmium batteries and nickel-metal hydride battery has been replaced by nickel-cadmium batteries, avoiding the use of cadmium. In China, the vast majority of battery manufacturers are still using cadmium as raw material for production of the battery, making the battery further increase the dangers. Affected by long-term consumption of cadmium contaminated water and food, can lead to bone pain and disease, cadmium into the body, causing osteomalacia skeletal deformities, and in severe form of natural fractures, and even die.
Manganese toxicity
Excessive levels of manganese accumulation in the body can cause neurological dysfunction, an early manifestation of an integrated sexual dysfunction, the emergence of heavier speech monotonous, dull expression, emotional indifference, accompanied by psychological symptoms.
Lead toxicity
Lead a major role in the nervous system, hematopoietic system, digestive system, and liver, kidney and other organs, can inhibit the synthesis of hemoglobin metabolism, but also directly on the mature red blood cells, for infants, young children much, it will lead to children's physical development retardation, chronic lead in the prime of childhood mental retardation.
   Nickel toxicity
   Nickel powder dissolved in the blood, to participate in the body circulation, with strong toxicity, can damage the central nervous system, causing abnormal blood vessels, severe cases lead to cancer.
   Zinc toxicity
   Zinc is an essential element of the human body, less toxic, oral zinc sulfate 1000mg only people with acute poisoning, but the inhalation of zinc oxide dust can cause poisoning. Its symptoms are generalized fatigue, muscle pain, difficulty breathing, vomiting, diarrhea, severe heart weakness, prostration, convulsions died. Zinc sulfate, zinc chloride penetrated the skin mucous membrane, it can produce dermatitis and ulcers. 0.1mg。 Of zinc to fish and aquatic toxicity of the toxic than the people, so the water quality requirements for fishing in the water content of zinc per liter should not exceed 0.1mg.
Recycling of waste batteries
Waste batteries may be small, against Queshen big. However, due to pollution, waste batteries do not like waste, air and water pollution, as could any sensory feel it has great hidden, so did not receive due attention. At present, China's battery production and consumption to become a big country, and used batteries pollution is an urgent need to address a major environmental problem.
According to environmental experts, in the recovery of waste batteries per 1,000 grams of metal, of which there are 82 grams of mercury, 88 grams cadmium, can be said that disposal of waste batteries recycling is not only addressed the sources of pollution, but also achieve the recycling of resources. In developed countries the recycling of spent batteries and use very seriously.
Many countries in Western Europe, not only in stores, but also directly on the street are equipped with a special battery recycling box, and used batteries are 95% of the material can be recycled, particularly in high-value metal recovery. Such as the Foreign Secondary Lead industry developed rapidly, the current lead 55% of all production comes from regenerated lead. The Secondary Lead Industry in dealing with the regeneration of waste lead-acid batteries account for a substantial portion. 100 100 kg of waste lead-acid batteries can be recycled 50 to 60 kilograms of lead.
Cadmium batteries for the regeneration of waste treatment technology abroad, have been more mature to deal with 100 kilograms of cadmium battery scrap recycling about 20 kg of metal cadmium, mercury batteries are mainly used for the environmentally sound processing means to prevent the pollution of the environment . However, there are in this area of management rather weak.
Note: Do not connect both ends of the battery, otherwise the battery will short-circuit, damaging the battery
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