污染环境，environment pollution有害健康，be harmful to health垃圾分类，classification of the garbage报纸、玻璃的再利用，recycling of the newspaper and glasses有害垃圾的处理，disposal of harmful garbage废水处理，disposal of wasted water制定法律 make laws
Environmental pollution, harmful to health, garbage, paper, glass recycling, waste treatment, waste water treatment, make laws
化学需氧量 COD； 生物需氧量 BOD； 30分钟污泥沉降比 SV30 ；污泥体积指数SVI； 升流式厌氧污泥床UASB；
deal with the wasted water
pollute the environmentbe harmful to health Waste Sorting recycle of newspapers and glassedharmful litter processingWaste water treatmentlaw making
Waste water treatment
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大雪压青松丶
