微絮凝_超滤组合工艺处理低浊度海水（Micro flocculation _ ultrafiltration combined process for treatment of low turbidity seawater）.docVIP

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微絮凝_超滤组合工艺处理低浊度海水（Micro flocculation _ ultrafiltration combined process for treatment of low turbidity seawater）.doc

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微絮凝_超滤组合工艺处理低浊度海水（Micro flocculation _ ultrafiltration combined process for treatment of low turbidity seawater）

微絮凝_超滤组合工艺处理低浊度海水（Micro flocculation _ ultrafiltration combined process for treatment of low turbidity seawater） Energy and Environment Micro flocculation / ultrafiltration combined process for treating low turbidity seawater Wang Xingjian, Liu Guotian, Zhang Shoubin (Tianjin Institute of Urban Construction, Tianjin 300384) Abstract: using micro flocculation and ultrafiltration technology of Tianjin salt field of Hangu treatment is carried out. The test results show that: in the coagulant and time The optimum dosage of sodium chlorate is 2.8 mg/L and 3.3 mg/L respectively. Turbidity and COD removal rate are respectively from 98.000/0, When 36.00/0 was increased to 99.990/0 and 57.00/0, the removal rate of SDI by ultrafiltration was increased by 530/0., compared with micro flocculation Slow down the pollution of the sea water to the membrane Keywords: micro flocculation; ultrafiltration; seawater CLC number: X55, document identification code: A, article number: 1006-6853 (2004) 01-0030-03 At present, membrane separation technology is becoming a hot research field of water supply In order to improve the removal efficiency of natural organic compounds in water by ultrafiltration, point [1]. was used to reduce the removal of natural organic matters in water Light film pollution, a feasible method is to change through various pretreatment The surface properties and morphology of pollutants in water change, [2-5]., micro floc The coagulation pretreatment process is suitable for low turbidity water quality because it is simple and easy to operate To pay attention to. Seawater treatment experiments were carried out in Tianjin Hangu saltworks, Li The domestic ultrafiltration membrane was treated by micro flocculation combined with ultrafiltration 1 test device and method 1.1 raw water quality and test equipment The water for the salt field of Hangu water, see table 1. As a pretreatment process of reverse osmosis desalination, the scale is 6 M3/h, the process is shown in figu