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认识早立法严欧洲许多国家在十九世纪末,二十世纪初工业化初期已发现工业化对水资源等人居环境带来了危害。如德国在上世纪二十年代就出台了保护水资源的法律,并规定企业生产产生的污水不达标不许排放,初处理后才能再汇集到污水处理厂,否则决不可以生产。德国、法国等国二十世纪三十年代就大规模修建污水处理厂。海登海姆市这个三十年代工业并不太发达的小城市,1937年就建成了现在的污水处理厂,后来又进行了五次大规模的扩
Knowing Legitimate Legislation Many European countries in the early part of the nineteenth and early twentieth centuries found that industrialization had harmed the living environment such as water resources in many countries. For example, Germany introduced the law of protecting water resources in the 1920s and stipulated that the wastewater produced by the enterprises should not be discharged and should not be discharged until the initial treatment before being collected into the sewage treatment plant. Otherwise, it will never be produced. Germany, France and other countries built a large-scale sewage treatment plant in the 1930s. Heidenheim, a thriving underdeveloped small city in the 1930s, built the present sewage treatment plant in 1937 and later conducted five large-scale expansion