Environment-friendly treatment process for papermaking wastewater

Abstract

The invention discloses an environment-friendly treatment process for papermaking wastewater, and relates to the field of sewage treatment processes, and the method comprises the following steps: step1, feeding the papermaking wastewater into a first filter tank; step 2, feeding part of the papermaking wastewater in the first filter tank into a second filter tank; step 3, filtering pulp fibers; step 4, scraping off the pulp fibers on a first filter plate; step 5, automatically cleaning the pulp fibers on a second filter plate; and step 6, automatically fishing the pulp fibers in the first filter tank. The process disclosed by the invention is ingenious in design and smooth in procedure connection, can realize automatic separation, salvage, collection and recycling of the pulp fibers and water, improves the efficiency by more than 10 times compared with manual treatment, can save more than 50% of manpower, has remarkable economic value, and avoids environmental pollution caused by improper wastewater treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to an environmental protection treatment process for papermaking wastewater. Background technique [0002] Papermaking is an important invention of the working people in ancient China. There are two forms of mechanism and manual. The mechanism is carried out continuously on the paper machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and is initially dehydrated in the wire part of the paper machine to form a wet paper sheet, which is then dehydrated by pressing, and then dried into paper. China is a big country in papermaking. With the development of science and technology, papermaking technology has become more and more advanced. The rapid improvement has reduced production costs and improved market competitiveness, but at the same time, the amount of papermaking wastewater generated has also increased. Pollution control is a t...

AI Technical Summary

Problems solved by technology

Pollution control is a topic of common concern to the government, enterprises, and society. Papermaking wastewater is not easy to recycle because it contains fine pulp fibers; therefore, traditional processes will have a great impact on the environment, and the loss of pulp fibers is the loss of the enterprise.

If the papermaking wastewater directly enters the regulating tank of the conventional treatment system and then settles, the sediment will decompose and stink, making the wastewater difficult to treat and indirectly causing great pollution to the environment

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