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PTA (p-phthalic acid) sewage anaerobic reactor and use method thereof

A technology of anaerobic reactor and anaerobic reaction zone, which is applied in the field of PTA sewage anaerobic reactor, can solve the problems of unstable operation of the system and easy loss of sludge, so as to improve the treatment effect, increase the contact probability, and prevent bias flow Effect

Active Publication Date: 2014-08-06
威海百克环保工程有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a novel PTA sewage anaerobic reactor for the anaerobic biological treatment of PTA sewage, which can overcome the shortcomings of existing PTA sewage anaerobic reactors such as easy loss of sludge and unstable system operation, and its use. method

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  • PTA (p-phthalic acid) sewage anaerobic reactor and use method thereof
  • PTA (p-phthalic acid) sewage anaerobic reactor and use method thereof
  • PTA (p-phthalic acid) sewage anaerobic reactor and use method thereof

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and the implementation process.

[0033] The present invention proposes a kind of PTA sewage anaerobic reactor, as attached figure 1Shown includes anaerobic reactor tank body or shell, water inlet water distributor 15, circulating water distributor 8, three-phase separation module 9, sludge bucket 7, etc., wherein the reactor shell can be designed as a cylinder ( carbon steel anti-corrosion or stainless steel structure), cube or cuboid form (reinforced concrete structure plus anti-corrosion), divided into upper and lower parts, the lower part is the water inlet distributor 15 and the anaerobic reaction zone 14, and the upper part is the three-phase separation module 9, Circulating water distributor 8, outlet pipe 13, biogas collection area 11 and biogas collection pipe 12. The three-phase separation module 9 is installed on the upper part of the reactor, and is fixed wit...

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Abstract

The invention belongs to the field of sewage treatment, and in particular relates to a PTA (p-phthalic acid) sewage anaerobic reactor and a use method thereof in a PTA sewage treatment specialty in the sewage treatment industry. The PTA sewage anaerobic reactor is characterized by being provided with a circulating header pipe of which one end is communicated with a three-phase separation area and the other end is connected with a water inlet pipe, wherein a water inlet pump and a circulating water pump are respectively arranged on the water inlet pipe and the circulating header pipe; a three-phase separation module and a sludge bucket which is fixed below the three-phase separation module are arranged in the three-phase separation area; the bottom of the sludge bucket is connected with an upper port of a sludge collecting pipe; and the lower port of the sludge collecting pipe is connected with the circulating header pipe. Compared with the prior art, the PTA sewage anaerobic reactor has the advantages that the running is stable, anaerobic sludge cannot flow away easily, and the like.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a PTA sewage anaerobic reactor in the sewage treatment industry and a use method thereof. Background technique [0002] At present, most domestic PTA sewage treatment adopts anaerobic + two-stage aerobic sewage treatment process, and the anaerobic system basically adopts UASB or improved UASB system. PTA sewage contains terephthalic acid, benzoic acid, acetic acid, p-carboxybenzaldehyde, p-toluic acid and other pollutants, COD is generally 6000-8000mg / l, of which terephthalic acid is not easy to be degraded by anaerobic microorganisms, p-carboxy Benzaldehyde and p-toluic acid can inhibit the growth of anaerobic microorganisms, which results in a long initial start-up period of the UASB system and serious sludge loss after the second start-up. After the start-up of the PTA sewage treatment plant, due to the unstable operation of the anaerobic system, the COD load of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCY02E50/343Y02E50/30
Inventor 赵曦波白岩君王德喜
Owner 威海百克环保工程有限公司
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