Distributed sewage bioflocculation strengthening device and treatment method

A technology of biological flocculation and dispersing sewage, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. The effect of easy adsorption and capture, lower operating costs, and protection of water environment

Inactive Publication Date: 2017-06-09
TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the efficiency of biological flocculation is greatly affected by environmental factors, and the bacteria are directly added to the reaction tank and are easily lost with the water body, the present invention achieves the above-mentioned purpose through the following implementation methods:

Method used

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  • Distributed sewage bioflocculation strengthening device and treatment method
  • Distributed sewage bioflocculation strengthening device and treatment method
  • Distributed sewage bioflocculation strengthening device and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the schematic diagram of the decentralized sewage treatment facility includes: a water collection adjustment tank 1, an anaerobic hydrolysis tank 2, a contact oxidation tank 3, an enhanced reaction tank 4, and a circulating pool 5. 4 pools.

[0042] Such as figure 2 , image 3 As shown, a device for strengthening bioflocculation of dispersed sewage, including a strengthening reaction tank, a fixed frame, a bioflocculation strengthening carrier, a water inlet diversion pipe, an outlet water diversion pipe and a mud discharge pipe; the front wall of the enhanced reaction tank is connected to the water inlet guide The flow pipe is 0.3m lower than the water outlet diversion pipe. Set up a steel bar fixing frame, and acrylic silk suspension balls are fixed on the steel bar, and there are flocculation seeding particles inside the suspension balls; a mud discharge pipe is set in the center of the bottom of the enhanced reaction tank to discharge m...

Embodiment 2

[0049] A kind of dispersed sewage biological flocculation strengthening device, described dispersed sewage biological flocculation strengthening device is located in the 4th pool of dispersed sewage treatment facility, wherein the decentralized sewage treatment facility comprises: water collection adjustment pond 1, anaerobic hydrolysis pond 2, contact Oxidation pool 3, enhanced reaction pool 4, and circulating pool 5, characterized in that the enhanced device for dispersing sewage bioflocculation includes: enhanced reaction pool, fixed frame, bioflocculation enhanced carrier, water inlet diversion pipe, water outlet diversion pipe and mud discharge pipe ; The front wall of the reinforced reaction tank is connected to the water inlet diversion pipe, and a steel bar fixing frame is set at a position 0.5m lower than the water outlet diversion pipe. The steel bar is fixed with acrylic silk suspension balls, and there are flocculation seeding particles inside the suspension balls; t...

Embodiment 3

[0055] The method for sewage treatment using a dispersed sewage biological flocculation strengthening device is characterized in that the following steps are carried out:

[0056] (1) The effective volume of bioflocculation enhancement device for sewage treatment is 20 m 3 ; The length, width and height are 3.5m, 3m and 3m respectively; the effective depth of the water body is 2m; the reinforced reaction tank is a reinforced concrete structure; The center is 2m away from the bottom of the tank, and the pipe diameter is Φ20cm; the parallel distance between the steel bars of the fixed frame on the top of the reinforced reaction tank is 15cm, and the steel bar specification is Φ6mm; 3 cm of modified fiber balls at a concentration of 0.5 x 10 8 Soak in cfu / ml flocculation bacteria suspension for 8hr, the mass volume ratio of modified fiber balls and flocculation bacteria suspension is 0.1kg / L, to obtain flocculation bacteria adsorption particles; wherein the flocculation bacteria...

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Abstract

The invention discloses a distributed sewage bio-flocculation reinforcement device and a treatment method. The device comprises a reinforcement reaction tank, a fixing rack, bio-flocculation reinforcement carriers, a water inlet flow-guide pipe, a water outlet flow-guide pipe and a sludge discharge pipe. The front-end tank wall of the reinforcement reaction tank is connected to the water inlet flow-guide pipe. The fixing rack is arranged on the tank wall at a position lower than the water outlet flow-guide pipe. Two ends of steel bars of the fixing rack are connected with fixing hooks on the inner wall of the reinforcement reaction tank. Propylene filament suspension balls are fixed on the steel bars. The bio-flocculation reinforcement carriers are combinations of the propylene filament suspension balls and flocculating bacteria inoculation particles. The inoculation particles are modified fiber balls absorbing flocculating bacteria. A mixture of nutrients and sodium alginate is embedded on the surfaces of the fiber balls. The sludge discharge pipe is arranged at the center of the bottom of the reinforcement reaction tank. As a result of experiment, the removal rate of suspended matters in sewage is stabilized at 78.2-91.5%, which meets the requirement of a national standard. With the device and method provided by the invention, flocculating bacteria film-forming period can be shortened by 5-15 days, and flocculating agent dose can be reduced by 30-60%. Therefore, operation cost can be reduced, and countryside water environment can be protected.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a biological flocculation strengthening device suitable for dispersing sewage and a treatment method. Background technique [0002] At present, sewage in urban areas in my country is basically included in the sewer network and transported to large-scale sewage treatment plants for centralized treatment. The technical capabilities of sewage treatment have reached a certain level, and flocculation technology is often widely used as an important basic operation unit. With the implementation of my country's sustainable development strategy and environmental protection policy, rural areas pay more and more attention to water pollution. The sewage generated in villages, tourist attractions, and agricultural sightseeing parks has the characteristics of being scattered and not included in the sewer network. Decentralized sewage treatment technology has been produced. Since this k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F9/14
Inventor 梁海恬何宗均高贤彪吴迪李妍李峰赵琳娜钱姗王德芳田阳
Owner TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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