Recently, Jinhai Pulp Paper's “Preparation Method for a Flocculant Wastewater Flocculant†obtained the “Invention Patent Certificate†granted by the State Intellectual Property Office. At present, the invention patent has been applied to production. Through the production operation, the company's environmental protection treatment level has been greatly improved, and the production cost has also been greatly reduced.
Pulping wastewater is mainly produced in the washing and bleaching process. Because residual lignin and fine fibers are contained in the water, the load of COD, BOD, color, and other pollution indicators increases, and the biochemical process is increased. The method is difficult to completely remove and it needs to be flocculated. The flocculating agent such as polyaluminum chloride produced by the traditional method has the disadvantages of high production cost, low COD removal rate of the sewage, large amount, and unsatisfactory effect. As the largest foreign-invested enterprise in Hainan Province, Jinhai Pulp & Paper attaches great importance to the research and development of this technology. Since February 2009, the company's Pulp Production Department, Technical Department and other departments have formed a joint research group to develop and apply pulp and paper. The original wastewater and new flocculant for wastewater treatment after biochemical pulping and papermaking are used to improve the flocculating effect of flocculants and the effect of pulping wastewater treatment. In July 2011, Jinhai Pulp Paper successfully developed a pulping wastewater flocculant. After one year of production and operation, the newly developed flocculant can increase the COD removal rate of wastewater by more than 10% compared with the original flocculant, and can save 20-30% of the chemical dosage, which not only achieves the goals of energy conservation and emission reduction, but also protects the environment. , And each year can create more than 500 million yuan for the company's benefits.
Pulping wastewater is mainly produced in the washing and bleaching process. Because residual lignin and fine fibers are contained in the water, the load of COD, BOD, color, and other pollution indicators increases, and the biochemical process is increased. The method is difficult to completely remove and it needs to be flocculated. The flocculating agent such as polyaluminum chloride produced by the traditional method has the disadvantages of high production cost, low COD removal rate of the sewage, large amount, and unsatisfactory effect. As the largest foreign-invested enterprise in Hainan Province, Jinhai Pulp & Paper attaches great importance to the research and development of this technology. Since February 2009, the company's Pulp Production Department, Technical Department and other departments have formed a joint research group to develop and apply pulp and paper. The original wastewater and new flocculant for wastewater treatment after biochemical pulping and papermaking are used to improve the flocculating effect of flocculants and the effect of pulping wastewater treatment. In July 2011, Jinhai Pulp Paper successfully developed a pulping wastewater flocculant. After one year of production and operation, the newly developed flocculant can increase the COD removal rate of wastewater by more than 10% compared with the original flocculant, and can save 20-30% of the chemical dosage, which not only achieves the goals of energy conservation and emission reduction, but also protects the environment. , And each year can create more than 500 million yuan for the company's benefits.
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