华北稳定塘氧平衡的研究

溶解氧(DO)是氧化塘内有机物降解的主要动力,本文介绍了华北稳定塘中的妤氧塘和强化塘进行污水妤氧处理所需氧的来源主要是浮游藻类光合放氧。在春季和秋季藻类产的氧可占水体溶解氧总来源的80％左右,氧的消耗是以“水呼吸”耗氧为主,“泥呼吸”耗氧为次。从氧平衡的角度阐述了各塘有机物降解与藻类产氧、生物耗氧的关系。 

Study on Oxygen Balance in Huabei Stabilization Pond

Dissolved oxygen is an important motive power for degrading organic matters in oxidation pond. Through this study, the oxygen source and consumption in aerobic ponds and enhanced pond in Huabei area are found to be mainly the phytoplankton photosynthesis, which produces oxygen and occupies about 80% of the total dissolved oxygen in water body during springand autumn. For the oxygen consumption, "water respiration"takes the first place and sediment respiration' takes the second. From the viewpoint of oxygen balance, this paper explains the relationship of the degradation of organic matters with the oxygen production by phytoplankton,and the oxygen bioconsumption, so as to provide scientific basis for the design and management of oxidation pond.