Integrated treatment device and method for low concentration sewage

A treatment device and low-concentration technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of sludge loss and low treatment efficiency, and prevent sludge The effect of churn, simple operation and low energy consumption

Active Publication Date: 2015-07-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problems of the existing anaerobic expanded bed reactors, which have low treatment efficiency for nitrogen and phosphorus elements and easily cause sludge loss, and provide an integrated treatment device and method for low-concentration sewage

Method used

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  • Integrated treatment device and method for low concentration sewage
  • Integrated treatment device and method for low concentration sewage
  • Integrated treatment device and method for low concentration sewage

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specific Embodiment approach 1

[0021] Specific implementation mode one: (see figure 1 ) The integrated treatment device for low-concentration sewage in this embodiment includes a bamboo-shaped aerobic outer cylinder 1, an anaerobic inner cylinder 2, a three-phase separation cylinder 3, a bamboo-shaped hollow cylinder 4, a water distributor 5, and an air collecting hood 6. Air pipe 7, mud discharge bucket 8, mud discharge pipe 9, S-shaped connecting pipe 10;

[0022] The anaerobic inner cylinder 2 is set in the bamboo-shaped aerobic outer cylinder 1, and the bottom of the three-phase separation cylinder 3 is connected to the top of the anaerobic inner cylinder 2;

[0023] The bamboo-shaped aerobic outer cylinder 1 is composed of several sections. The bamboo-shaped aerobic outer cylinder at both ends is filled with filler A, and the bamboo-shaped aerobic outer cylinder in the middle is filled with a mixture of filler A and coagulant. Ventilation holes 1-1 are set on the outer wall of the bamboo-shaped aerobi...

specific Embodiment approach 2

[0027] Embodiment 2: This embodiment differs from Embodiment 1 in that the filler A in the bamboo-jointed tubes at both ends of the bamboo-shaped aerobic outer cylinder 1 is a shell. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that in the bamboo-shaped aerobic outer cylinder 1 in the middle, the coagulant is polyaluminum chloride or aluminum sulfate. Others are the same as in the first embodiment.

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Abstract

The invention provides an integrated treatment device and method for low concentration sewage, and relates to a sewage treatment device and method, aiming to solve the technical problem that the existing anaerobic expanded bed reactor has low efficiency for treating nitrogen and phosphorus and easily causes sludge to lose. The device comprises a bamboo-shaped aerobiotic external cylinder, an anaerobic internal cylinder, a three-phase separation cylinder, a bamboo-shaped hollow cylinder, a water distributor, a gas collecting cover, a gas delivery pipe, a mud discharging hopper, a mud discharging pipe, and an S-shaped connecting pipe, wherein the anaerobic internal cylinder is arranged in the bamboo-shaped aerobiotic external cylinder, and the bottom of the three-phase separation cylinder is connected with the top of the anaerobic internal cylinder; the bamboo-shaped hollow cylinder is arranged in the anaerobic internal cylinder, a filler is filled in the bamboo-shaped aerobiotic external cylinder, and a mixture of anaerobic granular sludge and the filler is filled in the bamboo-shaped hollow cylinder. The method comprises the following steps of: feeding sewage into the anaerobic internal cylinder, reacting with anaerobic granular sludge in the hollow cylinder, rising into the three-phase separation cylinder for separation, dropping outlet water in the bamboo-shaped aerobiotic external cylinder for aerobic treatment, and completing treatment. The device and method is used for treating low concentration sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an integrated reactor device suitable for domestic sewage treatment in small towns. Background technique [0002] Domestic sewage in small towns contains a large amount of organic pollutants, and direct discharge without treatment can easily cause organic pollution of soil and water. Although the conventional sewage aerobic treatment process can achieve good water effluent effect, it often cannot meet the economical requirements of small towns for sewage treatment due to the huge energy consumption caused by aeration. At the same time, the treatment of excess sludge has also become a major problem in conventional aerobic treatment. On the other hand, the research on the efficiency of anaerobic process for low-concentration sewage treatment is becoming more and more mature, and its economic advantages also make it play an increasingly important role in domestic sewage treatment in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 赵庆良高畅丁晶魏亮亮姜珺秋王琨李伟
Owner HARBIN INST OF TECH
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