Bardenpho nitrogen and phosphorus removal technology based on MBBR

A denitrification and phosphorus removal, process technology, applied in aerobic and anaerobic process treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. Large floor area and other problems, to achieve the effect of reducing TP, increasing biomass, and saving floor space

Active Publication Date: 2017-01-04
QINGDAO SPRING WATER TREATMENT
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AI Technical Summary

Problems solved by technology

In the traditional Bardenpho denitrification and phosphorus removal process, the number of unit reactors is large and the floor area is large. When the sewage plant is upg

Method used

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  • Bardenpho nitrogen and phosphorus removal technology based on MBBR

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Embodiment 1

[0031] The effluent from the grit chamber of a city sewage plant is used as the influent water, the water temperature is 10-25°C, the BOD concentration in the water is 80-120mg / L, NH 4 + -N concentration is 35~45mg / L, TN concentration is 45~55mg / L, TP concentration is 5~8mg / L, and the effective volume of the reactor is 7.5m 3 , anaerobic pool 0.5m 3 , the first anoxic pool 3m 3 , the first aerobic pool 3.2m 3 , the second anoxic pool is 0.6m 3 , the second aerobic pool is 0.2m 3 . The effective specific surface area of ​​the suspended filler used is 620m 2 / m 3 . The specific gravity before filming is 97kg / m 3 . Inlet flow is 0.35m 3 / h. Due to the lack of carbon sources in the influent, carbon sources were added to the first anoxic zone and the second anoxic zone respectively, and the dosage was 100-120mg / L.

[0032] When starting up, the activated sludge in the biological pool of the sewage plant is used as the inoculation sludge, and the film-hanging suspended f...

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PUM

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Abstract

The invention discloses a Bardenpho nitrogen and phosphorus removal technology based on an MBBR, and belongs to the field of sewage purifying treatment. A treatment system adopted in the technology sequentially comprises an anaerobic pool, a first anoxic pool, a first aerobic pool, a second anoxic pool and a second aerobic pool; by putting suspended filler into the first aerobic pool, the nitrification load of an aerobic zone is greatly increased, the effluent NH<4+>-N can be lowered to a low level, and the nitrification function is good; by putting the suspended filler into the second anoxic pool, the denitrification load of the second anoxic pool is significantly increased, and the nitrification load and the denitrification load can be regulated according to the putting amount of the suspended filler to meet different effluent quality standards. According to the technology, traditional and conventional sewage treatment technologies such as an A2-O technology and an oxidation ditch technology are conveniently upgraded and improved, the treatment capacity of the existing technologies is promoted, increasement of the treated water amount or improvement of the effluent quality standard is met, and the floor area can be greatly reduced for a new project.

Description

technical field [0001] The invention belongs to the field of sewage purification treatment, and in particular relates to an MBBR-based Bardenpho denitrification and dephosphorization process. Background technique [0002] In order to strengthen the protection of natural water bodies, national and local governments have put forward higher requirements for the quality of effluent water from sewage treatment plants. In addition, the amount of water treated by sewage treatment plants is also increasing year by year. With the further improvement of water quality standards and the amount of treated water, a new sewage treatment process is urgently needed to enhance the treatment capacity of the original structures of the sewage plant when there is no new land area for new structures. Some newly-built sewage plants also face problems such as limited land area, large amount of water to be treated, and high quality standards of treated water. [0003] Bardenpho nitrogen and phosphor...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/30C02F3/302C02F2101/105C02F2101/16
Inventor 于振滨杨宇星宋美芹兰晓平韦欢刘飞
Owner QINGDAO SPRING WATER TREATMENT
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