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A technology of domestic sewage and phosphorus removal agent, which is applied in the field of water treatment, can solve the problems of high phosphorus content, difficult control of the amount of aluminum salt added, and the treatment effect cannot meet the direct discharge, etc., to achieve the effect of improving the effect of phosphorus removal
Active Publication Date: 2017-02-22
XINGAN ANHUI ELECTRIC LTD BY SHARE LTD
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Especially in recent years, the widespread use of detergents has caused the phosphorus content in domestic sewage to remain high. High phosphorus content in wastewater will cause serious pollution. Therefore, it needs to be treated before d
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[0014] Example 1
[0015] A phosphorus removal agent for domestic sewage, comprising phosphorus removal agent A and phosphorus removal agent B,
[0016] The phosphorus removal agent A is made of the following components by weight: 6.25 parts of polyaluminum chloride, 5.42 parts of attapulgite, 2.15 parts of aluminum sulfate, and 2.36 parts of ferrous sulfate;
[0017] The phosphorus removal agent B is made of the following raw materials by weight: 1.85 parts of polyaluminum chloride, 6.4 parts of polyvinyl alcohol, and 2.15 parts of ferrous sulfate.
[0018] Described attapulgite is through modification treatment, and processing method is as follows:
[0019] (1) Air-dry the attapulgite sticks naturally, put them into an iron pan for frying, the frying temperature is 550-600°C, and the frying time is 10-12min;
[0020] (2), soak the attapulgite clay fried in step (1) with a hydrofluoric acid solution with a mass fraction of 10% for 2-3 hours, and then wash with water;
[00...
Example Embodiment
[0023] Example 2
[0024] A phosphorus removal agent for domestic sewage, comprising phosphorus removal agent A and phosphorus removal agent B,
[0025] The phosphorus removal agent A is made of the following components by weight: 6.25 parts of polyaluminum chloride, 5.42 parts of attapulgite, 2.15 parts of aluminum sulfate, and 2.36 parts of ferrous sulfate;
[0026] The phosphorus removal agent B is made of the following raw materials by weight: 1.85 parts of polyaluminum chloride, 6.4 parts of polyvinyl alcohol, and 2.15 parts of ferrous sulfate.
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Abstract
The invention relates to a domestic sewage phosphate removing agent which includes a phosphate removing agent A and a phosphate removing agent B. The phosphate removing agent A is prepared from, by weight, 6.25 parts of polymeric aluminum, 5.42 parts of attapulgite, 2.15 parts of aluminum sulfate and 2.36 parts of ferrous sulfate. The phosphate removing agent B is prepared from, by weight, 1.85 parts of polymeric aluminum, 6.4 parts of polyvinyl alcohol and 2.15 parts of ferrous sulfate. According to the domestic sewage phosphate removing agent A and domestic sewage phosphate removing agent B, raw materials contain common water treatment agents, phosphate removing effect of the phosphate removing agent is greatly improved under PH (potential of hydrogen) conditions of the phosphate removing agent after the phosphate removing agent is compounded, high-phosphorus domestic sewage is treated by the method, and the content of phosphate in the treated sewage can be reduced to 0.25mg/L and reaches or is lower than national standards.
Description
technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a phosphorus removal agent for domestic sewage. Background technique [0002] Domestic sewage is mainly various detergents used in urban life, sewage, garbage, feces, etc., mostly non-toxic inorganic salts. Domestic sewage contains a lot of nitrogen, phosphorus, sulfur, and many pathogenic bacteria. Especially in recent years, the widespread use of detergents has caused the phosphorus content in domestic sewage to remain high. High phosphorus content in wastewater will cause serious pollution. Therefore, it needs to be treated before discharge to reduce the phosphorus content in wastewater. Now many Aluminum salts are directly used for treatment, but the amount of aluminum salts added is not easy to control, and the treatment effect cannot meet the needs of direct discharge. Contents of the invention [0003] The purpose of the present invention is to provide a phosp...
Claims
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