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System and method for treating Qinghai-Tibet-plateau low-temperature and anoxic slaughter wastewater

A technology of slaughter wastewater and treatment system, which is applied in the direction of filtration treatment, multi-stage water treatment, energy wastewater treatment, etc., and can solve problems such as low efficiency

Inactive Publication Date: 2017-11-07
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Applying the constructed wetland system to the treatment of low-concentration slaughterhouse wastewater can achieve certain treatment effects on nitrogen, phosphorus, heavy metals, and feed organic matter in the wastewater; however, in the low-temperature and anoxic environment of the Qinghai-Tibet Plateau, the winter is cold and long The ground temperature is relatively low, and the artificial wetland system is inefficient due to low temperature and lack of oxygen

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  • System and method for treating Qinghai-Tibet-plateau low-temperature and anoxic slaughter wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A method for treating Qinghai-Tibet Plateau low-temperature anoxic slaughter wastewater, comprising:

[0051] Transport the low-temperature anoxic slaughter wastewater from the Qinghai-Tibet Plateau to the slaughter wastewater pretreatment device of the greenhouse system 1, pass through the gravel filter layer 3, and then transport the filtered slaughter wastewater to the water temperature adjustment pool 5 through the first water pump 6, and in the water temperature adjustment pool The temperature sensor 7 detects the temperature of the slaughter wastewater, and transmits the temperature signal to the PLC control system. After the control system receives the temperature signal, it compares it with the preset upper and lower limit temperatures in the control system. When it is lower than the set upper and lower limit temperature (15 ℃), the control system controls the opening of the first circulating water pump 11 and the first valve 12, and heats the circulating water i...

Embodiment 2

[0058] The preparation method of the heavy metal adsorption layer is in parts by weight: by weight, take 25 parts of biogas residue, 8 parts of humus, 4 parts of biochar, 4 parts of diatomaceous earth, 4 parts of sodium lignosulfonate, 100 parts of hot water Put the spherical container in a stainless steel spherical container, place the spherical container on a four-axis grinder, turn on the four-axis grinder, drive the stainless steel spherical container to rotate randomly for 30 minutes, and then directly dry and crush the reacted mixed solution to obtain a composition of heavy metal adsorption layer of powder; the feed port of the stainless steel spherical container is sealed by a threaded cap, and the threaded cap is sealed and connected flush with the surface of the stainless steel spherical container; the driving shaft speed of the four-axis grinder is 120rpm, and the random transition frequency is 30s;

[0059] It is identical with process parameter and process and in e...

Embodiment 3

[0062] The preparation method of the heavy metal adsorption layer is in parts by weight: by weight, take 30 parts of biogas residue, 10 parts of humus, 3 parts of biochar, 5 parts of diatomaceous earth, 3 parts of sodium lignosulfonate, 120 parts of hot water put the spherical container on the four-axis grinder, turn on the four-axis grinder, drive the stainless steel spherical container to rotate randomly for 60 minutes, and then directly dry and crush the reacted mixed solution to obtain the composition of heavy metal adsorption The powder material of layer; The feed inlet of described stainless steel spherical container is sealed by threaded cap, and the surface of the stainless steel spherical container is flush with the threaded cap sealing connection; The driving shaft speed of described four-axis grinder is 150rpm, and random conversion frequency is 60s;

[0063] It is identical with process parameter and process and in embodiment 1.

[0064] The method of this embodim...

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Abstract

The invention discloses a system and method for treating Qinghai-Tibet-plateau low-temperature and anoxic slaughter wastewater. The method includes the steps that the slaughter wastewater is delivered into a slaughter-wastewater pretreatment device located in a greenhouse system and communicated with a water temperature adjusting pond; then a solar temperature adjusting system and a ground-source-heat-pump temperature adjusting system are controlled by a control system to heat the slaughter wastewater, oxygen is supplied to the heated slaughter wastewater, and the obtained slaughter wastewater is delivered to an artificial wetland system for wastewater ecologization processing. According to the system and method, as the greenhouse system is combined with the solar temperature adjusting system and the ground-source-heat-pump temperature adjusting system, the Qinghai-Tibet-plateau low-temperature slaughter wastewater is heated, the oxygen is supplied to the heated wastewater, then the wastewater is delivered into the artificial wetland system, and the slaughter wastewater is completely treated; through a nitrogen-phosphorus adsorption layer, an organism purifying layer and a heavy metal adsorption layer, the content of nitrogen, phosphorus, heavy metal, organisms and the like in outlet water obtained after wastewater treatment is remarkably reduced, and the problem that the nitrogen, the phosphorus, the heavy metal, the feeding organisms and the like in the slaughter wastewater exceed standards is solved.

Description

technical field [0001] The invention relates to a system and a method for processing slaughter wastewater, in particular to a system and a method for processing low-temperature anoxic slaughter wastewater on the Qinghai-Tibet Plateau. Background technique [0002] Fecal sewage from large-scale slaughterhouses belongs to high-concentration organic wastewater. Only 20% of these pollutants have been harmlessly treated, and most slaughterhouses do not have pollution treatment facilities. Many slaughterhouses discharge fecal sewage directly into canals or ponds. A small part of the sewage is used for agricultural irrigation, and some seeps into the ground, while most of the sewage is washed into the river with the rain during the flood season, seriously polluting surface water and groundwater, causing agricultural and animal husbandry problems. The water environment of the community and the Qinghai-Tibet Plateau deteriorated. [0003] One of the technical difficulties in the bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14F24J2/00F24J2/24F24J2/46F24H4/02C02F103/22C02F101/16C02F101/20C02F101/30
CPCC02F1/001C02F1/281C02F1/283C02F1/286C02F3/32C02F3/34C02F9/00C02F2101/105C02F2101/16C02F2101/20C02F2101/30C02F2103/22C02F2209/02C02F2301/08F24H4/02F24S10/70F24S80/00Y02E10/44Y02W10/37
Inventor 王亚超张永德林晓艳张宇金勇黄英泽
Owner SOUTHWEAT UNIV OF SCI & TECH
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