The recycling and disposal of waste mercury-free batteries

Waste free mercury battery doesn't need to recycle and separate handle. Can it be doposit with the living garbage for landfill? Chen Bainian, a primary school grade five student on YouFu Western Street, did an experiment to reject the idea. The 5th Nanjing youth "Scientific Genius Small Thesis Activities" held yesterday. The children write a lot of wonderful small paper.

Waste batteries harm "little"?

Chen Bainian remembers the teacher said in science class: section 1 battery rot in the field, can make 1 square meters of permanent loss of soil utilization value; A grain of button batteries can make 600 tons of water has been polluted. As a result, he always thought that the waste battery has great harm to the environment.

But careful when he is reading a newspaper, found that there were experts believe that the harm of waste battery to environment is negligible, officials said, even waste mercury-free battery don't have to recycle and separate processing, can be dealt with living garbage landfill. For such views, Chen Bainian don't agree with, and by doing experiments to refute. "I want to through the study on the impact of waste batteries on seed germination, to let more people understand the dangers of waste batteries."

Experimental results show mercury-free battery but are also harmful

Chen Bainian found by experiment: green beans in the water the seed germination rate was 100%, in a marked "low-mercury zinc manganese battery" leaching liquid of mung bean seed germination rate of 0, in a marked "mercury cadmium 0 use" batteries leaching liquid of mung bean seed germination rate was 100%, the seed germination late but relatively clean water, and stop growing after germination, mildewy, necrosis in the end. Thus draw the conclusion: low mercury and no mercury used batteries to mung bean seeds germination and growth have harm.

Search relevant information, through the experiment and consult the teacher, Chen Bainian think any exaggerated or narrow the dangers of waste battery is not scientific. "We all know the harm of waste battery has certain, but the action is not positive enough."

The "scientific genius organizing committee selected 74 excellent papers, the papers covering social, life, biology, and other disciplines. It is understood that in the small paper writing and reply outstanding players, will receive the 5th Nanjing young scientific genius "honorary title.

The page contains the contents of the machine translation.