Advanced wastewater treatment process where hydrostatic and hydrodynamic principle is applied

Abstract

The invention relates to an advanced wastewater treatment process where the hydrostatic and hydrodynamic principle is applied. The process includes the steps that wastewater is fed into an acid-base regulation pond to be subjected to acid-base regulation treatment, the wastewater where acid-base regulation is performed is conveyed into a coagulation pond to be subjected to coagulation treatment, and the wastewater where coagulation is performed is pre-treated through a suction filtration device of a flow guiding groove and then is fed into a biochemical pond to be subjected to biochemical treatment. Before acid-base regulation treatment, the process further includes advection deslagging sand setting mud setting treatment for treating particle matter and suspended matter, advanced treatment is performed after biochemical treatment and sequentially comprises forward sedimentation treatment and reverse sedimentation treatment, and residues obtained after advanced treatment are subjected to residue treatment. The advantages of energy conservation, environmental protection, high wastewater treatment efficiency and cyclic utilization are achieved through the process. The process is extremely low in running cost which is only 60-70% that of a traditional treatment method and is 1/5 of membrane treatment cost, the quality of treated water is not inferior to the quality of water treated by a membrane, and the reuse rate of the treated water is higher than that of the water treated by the membrane.

Description

technical field [0001] The invention belongs to the field of industrial waste water treatment, and in particular relates to a waste water advanced treatment process using the hydrostatic and dynamic principles. Background technique [0002] The textile industry is the three major industries that consume the most water in the country, including textile printing and dyeing, papermaking, and food and chemical industries. Water conservation in the industry has a great impact on water conservation in the country. For the wastewater treatment of the three major industries, industry personnel have conducted a lot of research: [0003] For example, the application publication number CN104176892A, the Chinese invention patent application titled "Textile Wastewater Treatment System", which records a textile wastewater treatment system, which includes a regulating pool for collecting waste water, and sequentially connected with the regulating pond. Neutralization adjustment tank, hydr...

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Problems solved by technology

[0011] The above-mentioned patents mainly focus on the research of acid-base adjustment tank, coagulation tank and biochemical treatment system, it is difficult to carry out advanced treatment of wastewater, and the waste residue generated in wastewater treatment has not been effectively treated and utilized, and there is a waste water treatment efficiency Disadvantages of relatively low, low utilization rate of waste water and residue

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