Sewage disposal system of life of new generation
The sewage turns into the water purification, continue water to regenerate forever
Sustainable Water Resource: Turn Waste Water into Clean Water
Gentle / YanWen Zhang take a photograph of / grow by high good fortune Zou, exhibition of country,
2000 " star of the wealth magazine " ( Fortune) Once predicted: ' water resource in the 21st century, like the petroleum in the 20th century.
The running water which seem extremely convenient and low-priced of now, for mankind, it is in fact unusually precious resources: Though the earth most area water, remove ocean, only 2.5% of proportion of the fresh water, if deduct in the fresh water again nearly 70% is frozen in the part of the Arctic Pole and the south magnetic pole iceberg and glacier, fresh water resources which we can use, are in fact less than 1%!
The mankind can only rejoice, nature design one circulatory system of water, rainwater enter the rivers and creeks after lowering, the influent gets to the groundwater, or the evaporation gets back to the atmosphere; As for our life, industry or the water after using of agriculture, get back to the rivers and creeks or the ocean again after dealing with. Perhaps because there is this circulatory system, is it than petroleum rare fresh water, seem so ordinary in fact to let just.

There is little water, there is less clean water
The persons of the life affluence are probably difficult to imagine, 1,100 million people are unable to enjoy the safety drinking water in the whole world, 2,600 million people do not have basic sanitary sewage hygiene treatment facilities. And the question of water, especially serious to the industrial development and developing country which population concentrated rapidly. Take China as an example, point out according to the investigation of European Union, 90% of the surface water is polluted; 42% of the rivers and creeks are polluted seriously; Over 70% of the lakes belong to and pollute seriously even more; And the groundwater in the knowing area, 50% is polluted.
Water pollution question of China, can be found out the clue by another datum: Discharge to the chemical oxygen demand of the water body in 2006 (chemical oxygen demand; COD) It is 73,100 million tons per year, relatively 11,100 million tons in 2000 per year, increase more than of sixfold, COD applies to and determines the surface water mostly ( Such as the lake water and river) The content of China's organic pollution, can learn the quality of water quality by this. The contamination accident of Tai Hu happenning in May of 2007, namely because industrial sewage and sanitary sewage will be discharged in a large amount, cause the water areas blue green algae great outburst of Tai Hu, have no water to use in six days to make 2,300,000 residents in the area of Wuxi whole, follow-up renovation spends and estimates that is up to 14 billion dollars.
Water pollution question of China, can be found out the clue by another datum: Discharge to the chemical oxygen demand of the water body in 2006 (chemical oxygen demand; COD) It is 73,100 million tons per year, relatively 11,100 million tons in 2000 per year, increase more than of sixfold, COD applies to and determines the surface water mostly ( Such as the lake water and river) The content of China's organic pollution, can learn the quality of water quality by this. The contamination accident of Tai Hu happenning in May of 2007, namely because industrial sewage and sanitary sewage will be discharged in a large amount, cause the water areas blue green algae great outburst of Tai Hu, have no water to use in six days to make 2,300,000 residents in the area of Wuxi whole, follow-up renovation spends and estimates that is up to 14 billion dollars.
As for developing the national respect, direct against some ' new developing pollutant ' in recent years ( emerging contaminants) Improve the measurement standard of the water pollution. What is called new developing pollutant is not the newly discovered pollutant, but perhaps in the past because the materials of studying about dosage, toxicity of this kind of chemical compound etc. were limited, so fail to stipulate relevant norms; But analyse progress of technology with medical research, expert find harmful chemical material of human body these not merely exist a long time, and has already caused the situation of the water pollution. So some countries have already started and legislated to control, have even listed in the international convention.
As for Taiwan, a lot of people have already understood, we are country of a lack of water. Though the average annual rainfall of Taiwan is 2.6 times of the average of the world, but exceeds half to flow into the sea rapidly in every annual rainfall in Taiwan in fact. According to the research of the economic department water conservancy administration, the annual average water supply amount in Taiwan is about 175 to 18 billion tons, in but to 2021, demand will rise to 20 billion tons, the serious situation which is short of water will appear in Taiwan then.