All kinds of paper are indispensable resources in our daily life, China's paper industry has a long history, papermaking technology is mature, and the development has industrialized, automated, large-scale production capacity in modern times. In the process of papermaking, a large amount of wastewater containing fiber, hemicellulose, methanol, formic acid, lignin, rosin acid and acid-base poisons will be produced.
In addition to consuming dissolved oxygen, papermaking wastewater entering the water body will also cause changes in the living tissues of aquatic organisms, affecting the stability and diversity of biological genes. The treatment process of papermaking wastewater should be flexible, and from the comprehensive treatment efficiency and environmental protection benefits, reclaimed water reuse equipment is a good choice.
The reclaimed water reuse equipment can effectively treat the toxic and harmful substances in the papermaking wastewater, and the effluent can be recycled as reclaimed water, which can be used to flush the ground and simply clean the outside of the production equipment, which can effectively improve the utilization rate of water resources. The reclaimed water reuse equipment adopts the treatment process design of "biochemical system + pretreatment system + neterfo limit separation system", and the neterfo limit separation system is loaded with a high anti-pollution membrane element with wider flow channel and lower surface charge, which is not easy to enrich pollutants and has good chemical cleaning recovery, which enhances the wastewater tolerance of the equipment. Therefore, wastewater with high TDS, high hardness and high COD can be treated with this equipment.
In the treatment of papermaking wastewater, the reclaimed water reuse equipment can effectively remove methanol, formic acid, lignin, slurry, heavy metal ions and other substances contained in the wastewater, and the operation has good stability and safety, and can also realize automatic operation and unmanned operation, saving the wastewater treatment cost of papermaking enterprises. In addition, the operating energy consumption of the equipment is not high, and it will not produce pollution, and has excellent environmental performance.
Editor: Novelty Technique: Muzi.
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