摘要
随着城市化的不断推进,我国城市人口剧增,城市废水排放量快速增长,导致许多河流被污染。目前,水体有机污染现象比较普遍,其严重缺氧,有机物被厌氧分解,甚至发黑发臭。曝气充氧技术和曝气装置因其投入成本低、治理见效快,在国内外污染水体治理中被广泛使用。曝气充氧有利于氧传质,提高水体溶解氧水平,恢复和增强水体中好氧微生物活性,抑制底泥氮、磷的释放,增加液体混合和污泥絮凝,从而去除水体中的污染物,改善河道水质。本文通过模拟试验方法,分析曝气设备及强度、曝气方式、曝气位置等对水体污染治理的作用和机理,为黑臭水体的治理和修复提供技术支持。
With the continuous advancement of urbanization,China's urban population has increased dramatically,and urban wastewater discharge has increased rapidly,resulting in the pollution of many rivers. At present,the phenomenon of organic pollution in water is relatively common,and it is seriously deficient in oxygen. Organic matter is decomposed by anaerobic and even black hair is stinky. The aeration and oxygenation technology and aeration device are widely used in the treatment of polluted water bodies at home and abroad because of their low input cost and quick treatment. Aeration and oxygenation is beneficial to oxygen mass transfer,increase dissolved oxygen level in water,restore and enhance aerobic microbial activity in water,inhibit release of nitrogen and phosphorus from sediment,increase liquid mixing and sludge flocculation,thereby removing pollutants from water and improving the water quality of the river. This paper analyzes the effects and mechanisms of aeration equipment and strength,aeration methods,and aeration positions on water pollution control through simulation test methods,in order to provide technical support for the treatment and restoration of black and odorous water.
作者
唐其林
Tang Qilin(China Water Resources and Hydropower Engineering No.8 Engineering Co.,Ltd.,Changsha 410007,China)
出处
《中国资源综合利用》
2019年第7期31-35,共5页
China Resources Comprehensive Utilization
关键词
水质提升
临时设施
导流
施工方法
water quality improvement
temporary facilities
diversion
construction methods
