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Integrated enhanced denitrification sewage treatment device and method

A sewage treatment device and technology for treatment devices, which are applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of low replacement cost

Pending Publication Date: 2021-11-30
华夏碧水环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method improves the removal effect of ammonia nitrogen and total nitrogen, ensures better and more stable effluent quality, and fundamentally solves the problem that effluent ammonia nitrogen and total nitrogen cannot meet the standards in the current conventional integrated domestic sewage treatment equipment.

Method used

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  • Integrated enhanced denitrification sewage treatment device and method
  • Integrated enhanced denitrification sewage treatment device and method
  • Integrated enhanced denitrification sewage treatment device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0052] The design water inflow of rural sewage in a northwest area is 100m 3 / d, influent water quality CODcr 269.52mg / L, NH 3 -N 74.78mg / L, TN 133.12mg / L, TP 4.62mg / L, SS 150mg / L. The effluent water quality implements the first-level A standard in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002), CODcr 50mg / L, NH 3-N 5mg / L, TN 8mg / L, TP0.5mg / L, SS 10mg / L. The sewage is passed into the integrated enhanced denitrification sewage treatment device of the present invention through the water inlet pipe, and the specific surface area is 1000m2 in the anoxic zone. 2 / m 3 , The BSLN filler with a nominal size of φ36mm×H5mm is passed through the mixer to achieve stirring and mixing; the specific surface area of ​​the aerobic zone is 800m 2 / m 3 , The BSLN filler with a nominal size of φ24mm×H4mm provides the oxygen needed by the microorganisms through the submerged fan and aeration pipe installed at the bottom and mixes and stirs, and sets up th...

Embodiment 2

[0056] The design water inflow of rural sewage in a central area is 120m 3 / d, influent water quality CODcr 299.16mg / L, NH3-N72.27mg / L, TN 93.69mg / L, TP 6.32mg / L, SS 200mg / L. The effluent water quality implements the first-class A standard in the "Pollutant Discharge Standard for Urban Sewage Treatment Plants" (GB18918-2002), CODcr 50mg / L, NH3-N 5mg / L, TN 8mg / L, TP0.5mg / L, SS 10mg / L L. The sewage is passed into the integrated enhanced denitrification sewage treatment device of the present invention through the water inlet pipe, and the specific surface area is 1000m2 in the anoxic zone. 2 / m 3 , The BSLN filler with a nominal size of φ36mm×H5mm is passed through the mixer to achieve stirring and mixing; the specific surface area of ​​the aerobic zone is 800m 2 / m 3 , The BSLN filler with a nominal size of φ24mm×H4mm provides the oxygen needed by the microorganisms through the submerged fan and aeration pipe installed at the bottom and mixes and stirs, and sets up the mixer...

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Abstract

The invention discloses an integrated enhanced denitrification sewage treatment device. The device comprises a water inlet region, an anoxic region, a transition region, an aerobic region, a settling region, a denitrification filter tank, a nitrification liquid backflow region, a sludge storage region, a clear water region and an equipment room which are connected in sequence, wherein a BSLN filler and a stirrer are arranged in the anoxic region; the BSLN filler, an aeration device and a submerged fan are arranged in the aerobic region; an inclined-tube filler is arranged in the settling region; a denitrification filter material is arranged in the denitrification filter tank; a nitrification liquid backflow pump is arranged in the nitrification liquid backflow region and is connected with the water inlet region through a nitrification liquid backflow pipe; and a sludge return pipe and a carbon source adding pipe are arranged near the water inlet pipe of the water inlet region. The invention also discloses a treatment method. The treatment method improves the removal effect of ammonia nitrogen and total nitrogen, and ensures that effluent quality is better and more stable.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an integrated enhanced denitrification sewage treatment device and treatment method for domestic sewage with high ammonia nitrogen and high total nitrogen. Background technique [0002] In some villages and towns, there are problems such as difficulty in sewage collection, small water volume, and high indicators of ammonia nitrogen and total nitrogen. Among them, the ammonia nitrogen index can be as high as 60mg / L, and the total nitrogen can be as high as 100mg / L; while the effluent of the sewage treatment plant is required to reach ammonia nitrogen ≤ 5mg / L, and total nitrogen ≤ 15mg / L. For this reason, an integrated enhanced denitrification sewage treatment device has been developed to treat this kind of sewage. [0003] The conventional integrated domestic sewage treatment equipment widely used at present mainly adopts the following two processes: AO biological contact oxidatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/10C02F101/16C02F101/30C02F101/38
CPCC02F9/00C02F3/302C02F2001/007C02F3/34C02F1/00C02F2101/105C02F2101/16C02F2101/30C02F2101/38
Inventor 赵曙光张传兵刘妞闫姝晓王慧芳张丁丁徐亚慧李雪清王超琦郭永正朱光雨张冉
Owner 华夏碧水环保科技股份有限公司
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