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为了解决水的污染问题,世界各国在五十年代普遍采用了氧化塘的处理污染水工艺,收到了效果。利用水生植物净化污水,把水体自净,土壤净化和生物分解结合起来,是尤为要考虑的新的环保工作。辽宁省做为稻田灌溉用水的大小62条河流,有43条发生不同程度污染,四大灌区中,已有三个受到污染。为了探求水生植物耐污性能,并最终利用其净化污水,保护灌区土壤,自1972年起进行了水生植物防污染研究工作,根据省水生植物环保科研协作组的计划,完成了首批水生植物耐适辽宁省主要污水能力的研究工作。
In order to solve the problem of water pollution, countries in the world commonly used oxidation ponds to treat polluted water in the 1950s and received the results. The use of aquatic plants to purify sewage, water purification, soil purification and biodegradation combined, is especially to consider the new environmental protection work. In Liaoning Province, 62 rivers were used as water for irrigation in paddy fields, and 43 of them were polluted to different degrees. Of the four major irrigation districts, three have been polluted. In order to explore the fouling resistance of aquatic plants, and ultimately the use of its purification of sewage to protect irrigated soils, aquatic plants pollution prevention research carried out since 1972, according to the plan of the provincial aquatic plants research group of environmental protection and environmental protection, completed the first aquatic plant resistance Liaoning Province, the main sewage capacity of the research work.