Paper mill sewage treatment agent

Abstract

The invention discloses a paper mill sewage treatment agent. The paper mill sewage treatment agent is prepared from the following raw materials in parts by weight: 40 to 65 parts of modified bagasse powder, 11 to 16 parts of polyacrylamide, 3 to 7 parts of ethyl maltol, 3 to 8 parts of chlorella powder, 8 to 13 parts of humic acid, 13 to 18 parts of soya bean meal, 11 to 14 parts of lotus leaf ash, 7 to 10 parts of ferric chloride, 15 to 23 parts of kaolin, 98 to 125 parts of water, 2 to 5 parts of salicylic acid and 1 to 3 parts of monopotassium phosphate. By adopting the paper mill sewage treatment agent, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), SS (Stainless Steel) and metal ion content of sewage can be lowered effectively, and the emission standard can be reached; the paper mill sewage is treated with the modified bagasse, so that waste is turned into treasure, and resource waste is avoided; the paper mill sewage treatment agent has the advantages of simple preparation method, adoption of readily available raw materials, relatively low production cost and high sewage treatment efficiency.

Description

technical field [0001] The invention relates to a sewage treatment agent, in particular to a paper mill sewage treatment agent. Background technique [0002] The paper industry uses wood, straw, reeds, rags, etc. as raw materials, and cellulose is separated by high-temperature and high-pressure cooking to make pulp. In the production process, the non-cellulose part of the raw material is finally discharged to become papermaking black liquor. Black liquor contains lignin, cellulose, volatile organic acids, etc., which has an odor and is highly polluting. It can seriously pollute water resources and cause ecological balance. At present, the problem of sewage treatment in paper mills is very serious, and the cost is high. The papermaking wastewater of paper mills has become one of the major sources of water pollution, and its treatment is becoming more and more urgent. The current treatment methods include sedimentation method, biological decomposition method, electrolysis met...

AI Technical Summary

Problems solved by technology

Black liquor contains lignin, cellulose, volatile organic acids, etc., which has an odor and is highly polluting. It can seriously pollute water resources and cause ecological balance. At present, the problem of sewage treatment in paper mills is very serious, and the cost is high. The papermaking wastewater of paper mills has become one of the major sources of water pollution, and its treatment is becoming more and more urgent. The current treatment methods include sedimentation method, biodegradation method, electrolysis method, etc. The effect of sedimentation method is poor, and the control effect of biodegradation method is poor. The cost of electrolysis is too high

[0003] Bagasse is a by-product of sugarcane sugar mills and has traditionally been burned by sugar mills as fuel, resulting in a waste of resources

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