The influence of 3 kinds of sanitarytreatment ways of steam explosion, irradiation and composting on the form of organic components in sludge was studied with municipal sludge as material.
以城市污泥为材料，研究了热喷、辐射和堆肥3种无害化处理方式对污泥中有机组分形态的影响。
2
After the introduction of sanitary water and sewage treatment, the number of cases of cholera quickly diminished.
实行卫生用水与污水处理以后，霍乱病例的数量迅速减少了。
3
The treatment project for domestic waste: sanitary landfill.