Biological treatment method for sewage water and waste gas generated by livestock and poultry cultivation

A biological treatment, livestock and poultry breeding technology, applied in the direction of biological water/sewage treatment, flotation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the difficulties in design and implementation, high energy consumption and high operating costs , complex process and other issues, to achieve stable treatment effects, reduce auxiliary equipment and floor space, and achieve efficient and stable treatment effects

Inactive Publication Date: 2010-04-07
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problems of relatively difficult design and implementation, complex process flow, low treatment efficiency of wastewater and waste gas in farms, and high infrastructure, energy consumption and operating costs caused by the divide-and-conquer technology of existing livestock and poultry breeding pollutants. , providing a biological treatment method for sewage and waste gas produced by livestock and poultry breeding, the specific technical solutions to solve the above problems are as follows:

Method used

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  • Biological treatment method for sewage water and waste gas generated by livestock and poultry cultivation
  • Biological treatment method for sewage water and waste gas generated by livestock and poultry cultivation

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specific Embodiment approach 1

[0015] Specific implementation mode one: combine figure 1 The present embodiment will be described. This embodiment is composed of a bed body 1, a filter bed packing layer 2, an exhaust gas input pipeline 4, a sewage spray pipeline 5 and a sewage discharge pipeline 6. The exhaust gas input pipeline 4 is arranged in the bed body 1, and There are air holes 3 on the pipe wall of the exhaust gas input pipeline 4 in the bottom horizontal section, and a filter bed packing layer 2 is arranged above the exhaust gas input pipeline 4 in the bottom horizontal section of the bed body 1, and the filter bed packing layer 2 is made of wood chips or pottery. Granules are used as filler, and the filler specification (diameter or side length) is 4-6 mm. A sewage spray pipeline 5 is arranged above the filter bed filler layer 2, and a sewage discharge pipeline 6 is arranged at the bottom of the bed body 1.

[0016] The treatment unit combines liquid treatment and waste gas treatment in one.

specific Embodiment approach 2

[0017] Specific embodiment two: the steps of this embodiment method are as follows:

[0018] Step 1, using the biological treatment device of Embodiment 1;

[0019] Step 2. Pre-sedimentation and flotation separation of sewage pollutants produced by livestock and poultry breeding. The pre-sedimentation adopts the sedimentation device commonly used in the water treatment process to remove a large amount of solid matter such as feces in the wastewater; the flotation adopts an air flotation separation device , the purpose is to remove the suspended solid particles in the wastewater after pre-sedimentation, the separated solid particles are used as compost, and the pretreated sewage is introduced into the sewage spray pipeline 5 of the biological treatment device;

[0020] Step 3, collecting waste gas and inputting it into the biological treatment device through the waste gas input pipeline 4 of the biological treatment device;

[0021] Step 4, put the residual activated sludge of...

specific Embodiment approach 3

[0024] Specific embodiment three: The time for biofilm generation in step four of this embodiment is 30 days.

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Abstract

The invention discloses a biological treatment device and a treatment method for waste water and waste gas produced in the cultivation of livestock and poultry, which relates to the treatment device and the method for the waste water and the waste gas and solves the problems of complex technology process and the low treatment efficiency of the waste water and the waste gas in the current process.The intake line of the waste gas (4) of the device is arranged at the bottom of a lathe body (1), a stomata (3) is opened on the pipe wall of the intake line of the waste gas (4) which is arranged atthe bottom, the upper side of the intake line of the waste gas (4) of a horizontal section at the bottom of the lathe body (1) is provided with the packing layer of a filter bed (2), the upper side ofthe packing layer of the filter bed (2) is provided with a waste water spraying pipeline (5), and the bottom of the lathe body (1) is provided with a waste water discharge pipeline (6). The method isthat: firstly, the waste water and pollutants which are produced in the cultivation of livestock and poultry are carried out preliminary sedimentation and flotation separation; secondly, the waste gas iscollected and input into the treatment device; thirdly, odorous substances in gas are removed; and fourthly, the waste water is discharged after adsorption and degradation treatments. The treatment d evice and the treatment method of the invention have high removal rate for removing the waste water and the waste gas, thus reducing influence on ecological environment.

Description

technical field [0001] The invention relates to a treatment method for sewage and waste gas. Background technique [0002] At present, the chemical oxygen demand of pollutants contained in livestock and poultry manure in my country has exceeded the chemical oxygen demand of industrial wastewater and domestic sewage, resulting in a large loss of nitrogen and phosphorus. The discharge of pollutants from livestock and poultry farming has become the main source of agricultural non-point source pollution. The pollutants produced by the livestock and poultry breeding industry are: first, livestock and poultry manure; second, sewage pollution; third, gas pollution. At present, the common treatment technology for livestock and poultry breeding pollutants in foreign countries is mainly to separate feces, sewage and gas, and process them separately. After the feces are separated, the use of composting technology to recover the nutrients and energy in them is a relatively mature fece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/84C02F3/00C02F1/24C02F1/52
CPCY02A40/20Y02A50/20
Inventor 温沁雪陈志强
Owner HARBIN INST OF TECH
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