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应用沉淀、藻类净化、消毒和过滤等水处理技术,因地制宜地设计了河口水预处理工艺,其流程为:原水→一级沉淀→二级沉淀→藻类净化→氯化消毒→三级沉淀→砂滤→出水。试验结果表明:该工艺对降低浑浊度作用显著,出水的浑浊度仅1NTU左右,降低了99. 7%;对营养盐的去除效果明显,NH3-Nt、NO2--N、NO3--N和PO43--P的去除率分别为56. 3%、86. 4%、77. 2%和89. 9%;经处理后的河口水用于罗氏沼虾育苗生产,取得了良好的生产效果和经济效益。
The application of sedimentation, algae purification, disinfection and filtration and other water treatment technology, according to local conditions designed river mouth pretreatment process, the process is: raw water → primary sediment → secondary sediment → algae purification → chlorination → tertiary precipitation → sand Filter → water. The results showed that the process had a significant effect on reducing the turbidity. The turbidity of the effluent was only about 1 NTU, decreasing by 99.7%. The effect of removing nutrients was obvious. The effect of NH3-Nt, NO2 - N, NO3 - N and The removal rates of PO43 - P were 56.3%, 86.4%, 77.2% and 89.9%, respectively. The treated estuary water was used in the nursery production of Macrobrachium rosenbergii and achieved good production results. Economic benefits.