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21世纪是一个“水比油更宝贵”的世纪,保护水资源迫在眉睫!我国江河湖泊普遍遭受污染,全国75%的湖泊出现了不同程度的富营养化,城市污水占61%~65%,已经成为主要的污染源。据国家环保局发布的中国环境质量公告,全国七大水系中,一半以上河段的水质受到污染,全国1/3的水体不适于鱼类生存,1/4的水体不适于灌溉,90%的城市水域污染严重,50%的城镇水源不符合饮用水标准,40%的水源已不能饮用,南方城市总缺水量的
The 21st century is a century in which water is more valuable than oil. Protecting water resources is imminent! The rivers and lakes in our country are generally polluted, and 75% of the lakes in the country have varying degrees of eutrophication. The urban sewage accounts for 61% to 65% , Has become a major source of pollution. According to the announcement by China’s State Environmental Protection Administration on the environmental quality in China, more than half of the seven major river systems in the country are polluted by water quality. One-third of the country’s water bodies are not suitable for fish survival, and one-fourth of the water bodies are not suitable for irrigation. 90% Urban water pollution is serious, 50% of urban water sources do not meet the drinking water standards, 40% of the water can not drink, the total urban South water shortage