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Glyphosate wastewater purifying device and purifying method

A glyphosate wastewater and purification device technology, applied in chemical instruments and methods, inorganic chemistry, ammonia compounds, etc., can solve problems such as waste of raw materials and difficult treatment, and achieve the effects of optimizing the environment, stabilizing performance, and reducing environmental pollution

Inactive Publication Date: 2014-12-03
HUBEI TAISHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems of difficult glyphosate wastewater treatment, waste of raw materials, environmental protection, etc., reduces the discharge of wastewater and reduces environmental pollution. At the same time, the recovered ammonium sulfate is sold outside, achieving the purpose of reducing emissions and increasing efficiency, clean production, and optimizing the environment. In line with the development concept of the national circular economy, the comprehensive benefits are remarkable

Method used

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  • Glyphosate wastewater purifying device and purifying method

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Embodiment 1

[0029] A glyphosate wastewater purification device, the liquid alkali storage tank 8 is connected to the flow control valve 9 of the upper pipeline of the pH adjustment tank 1 through the liquid alkali pump 7-5;

[0030] The bottom of the pH adjustment tank 1 is connected to the spray layer at the upper end of the stripping tower 2-2 via the stripping pump 7-1, and the bottom of the stripping tower 2-2 is connected to the top of the stripping tower 2-1 via the stripping pump 7-3 The spray layer is connected, the stripping tower 2-1 top is connected with the inlet at the bottom of the stripping tower 2-2 through the line pipeline, the top of the stripping tower 2-2 is connected with the bottom inlet of the absorption tower 4 through the line pipeline, and the top of the absorption tower 4 is connected with the bottom inlet of the absorption tower 4 through the line pipeline. The line pipeline is connected with the blowing blower 3 and then connected with the blowing tower 2-1; ...

Embodiment 2

[0037] A method for purifying glyphosate wastewater, comprising the steps of:

[0038]1) Send the glyphosate wastewater to the pH adjustment tank 1, the total nitrogen concentration in the glyphosate wastewater is 5000mg / L, adjust the pH of the wastewater to 11, adjust the wastewater to a temperature of 45°C, and then pump it into the blower The spray layer at the top of the stripping tower 2-2 is fed with steam to the bottom of the stripping tower 2-2, and the waste water is sprayed and scattered on the packing, and denitrified by the denitrification agent on the packing, and the denitrified The gas rises through the top of the stripping tower 2-2 and passes into the absorption tower 4 to complete a stripping;

[0039] 2) The waste water after denitrification falls through the packing material in the upper part of the stripping tower 2-2 and is pumped by the stripping pump 8-3 to the spray layer at the top of the stripping tower 2-1, and then to the bottom of the stripping to...

Embodiment 3

[0042] A method for purifying glyphosate wastewater, characterized in that it comprises the steps of:

[0043] 1) Send the glyphosate wastewater to the pH adjustment tank 1, the total nitrogen concentration in the glyphosate wastewater is 800mg / L, adjust the pH of the wastewater to 12, adjust the wastewater to a temperature of 50°C, and then pump it into the blower The spray layer at the top of the stripping tower 2-2, the waste water is sprayed and scattered onto the packing, and the denitrification agent on the packing is denitrified, and the gas after denitrification rises through the top of the stripping tower 2-2 and passes into the Absorption tower 4 completes a stripping;

[0044] 2) The waste water after denitrification falls through the filling material in the upper part of the stripping tower 2-2 and is pumped by the stripping pump 8-3 to the spray layer at the top of the stripping tower 2-1, and the blowing blower 3 is turned on for blowing The waste water is spray...

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Abstract

The invention relates to a glyphosate wastewater purifying device. According to the device, a pH regulating tank is connected with a spraying layer of an air stripping tower (2-2) through an air stripping pump (7-1); the air stripping tower (2-2) is connected with a spraying layer at the upper end of an air stripping tower (2-1) via an air stripping pump (7-3); the top end of the air stripping tower (2-1) is connected with the bottom of the air stripping tower (2-2); the top end of the air stripping tower (2-2) is connected with an inlet in the bottom of an absorption tower (4); and the top of the absorption tower (4) is connected with the air stripping tower (2-1) after being connected with an air stripping fan (3). Ammonia gas obtained through first-level and second-level air stripping by adopting the equipment is neutralized via sulfuric acid to prepare ammonium sulfate for being used in the next step. The device has the advantages that the device is high in purifying rate, the air stripping efficiency of the purifying method is far higher than that of a traditional air stripping method and the ammonia gas air stripping efficiency can be up to 98%; the ammonia gas with large wastewater quantity and high concentration can be recycled; and an absorption and purification tower adopts second-level reverse spraying, the specific surface area of padding is large, the performance stability is guaranteed through the gas liquid ratio confirmed by experimental researches and the ammonia gas absorbing efficiency can be up to 95%.

Description

technical field [0001] The invention relates to a purification device for glyphosate waste water, and uses the device to purify the waste water, belonging to the field of chemical equipment and chemical technology. Background technique [0002] Glyphosate is an excellent organophosphorus non-selective herbicide. It is a high-efficiency, low-toxicity, low-residue, and broad-spectrum herbicide. It has good systemic and conductive properties. It can control almost all annual and perennial weeds and bushes, and can effectively kill 76 of 78 kinds of deep-rooted malignant weeds. After the drug is absorbed by the green part of the plant, it has a strong destructive effect on the underground tissue of perennial weeds. This variety has risen rapidly with the large-scale promotion of genetically modified crops around the world. Therefore, glyphosate is one of the herbicide varieties with the largest consumption, the fastest growth momentum and the most market competitiveness in the ...

Claims

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Application Information

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IPC IPC(8): C02F9/04C01C1/242C02F103/36
Inventor 王瑞宝覃立忠刘训军
Owner HUBEI TAISHENG CHEM
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