Anaerobic coking wastewater treatment method and system based on carbon-nitrogen-sulfur circulation
A technology of coking wastewater and treatment methods, which is applied in the direction of aerobic and anaerobic process treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of high-efficiency enrichment of microbial populations that cannot be removed, and achieve organic The effect of high load, reduced processing pressure, and reduced carbon emissions
Pending Publication Date: 2022-03-15
GUANGZHOU EBO ENVIRONMENTAL PROTECTION TECHCO
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Problems solved by technology
These processes cannot achieve efficient enrichment of microbial populations with specific pollutant removal capabilities, and the pollutant removal pathways of traditional processes are difficult to maximize the use of electron charge transfer under the premise of low energy consumption
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[0029] Orientation terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to their structures, and they are relative concepts. Therefore, it is possible to make corresponding changes according to its different positions and different usage states. Accordingly, these or other directional terms should not be construed as limiting terms.
[0030] The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with aspects of the disclosure.
[0031] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless th...
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The invention discloses an anaerobic coking wastewater treatment method and system based on carbon-nitrogen-sulfur circulation. The anaerobic coking wastewater treatment method based on carbon, nitrogen and sulfur comprises the following steps: carrying out anaerobic reaction on coking wastewater, and controlling the reflux ratio of raw water to biochemical effluent to form a microbial symbiotic system for obtaining and losing electron balance by carbon, nitrogen and sulfur so as to obtain reaction effluent; and treating the reaction effluent through an aerobic section, carrying out mud-water separation to obtain biochemical effluent, enabling part of the biochemical effluent to enter a subsequent deep reaction section, and enabling part of the biochemical effluent to flow back to enter an anaerobic reaction section according to a reflux ratio. The problem of low coking wastewater treatment efficiency of microbial sewage treatment is solved. The anaerobic coking wastewater treatment system based on carbon-nitrogen-sulfur circulation comprises an anaerobic reactor, an aeration tank, a sedimentation tank, a reflux system and a sludge discharge system, one end of the reflux system is communicated with a water outlet pipeline of the sedimentation tank through a pipeline, and the other end of the reflux system is communicated with the anaerobic reactor through a pipeline.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to a carbon, nitrogen and sulfur cycle-based anaerobic coking wastewater treatment method and system. Background technique [0002] Coking wastewater is a typical toxic and refractory organic wastewater. The coking wastewater mainly comes from the production water and steam condensation wastewater in the primary cooling of coke oven gas and coking production. Its main features: the concentration of pollutants in coking wastewater is high and difficult to degrade. In addition to inorganic pollutants such as ammonia nitrogen, cyanide, sulfide, sulfur cyanide, and fluoride, it also contains phenolic compounds, oil, amines, naphthalene, and pyridine. , quinoline, anthracene and other nitrogen, oxygen, sulfur heterocyclic compounds and polycyclic aromatic compounds (PAHs). There are more than 10,000 types of complex organic pollutants in coking wastewater, and the selection of treatment...
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Login to View More IPC IPC(8): C02F3/30C02F3/34C02F101/10C02F101/16C02F101/30
CPCC02F3/303C02F3/305C02F3/34C02F3/345C02F2101/16C02F2101/101C02F2101/30
Inventor 唐尧梁镇陶一通谢海松
Owner GUANGZHOU EBO ENVIRONMENTAL PROTECTION TECHCO