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A treatment method for high-concentration ammonium sulfate industrial wastewater

A technology for industrial waste water and treatment methods, applied in natural water body treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of inability to directly and effectively treat biodegradable, poor ammonium sulfate concentration, high waste water and other issues, to achieve the effects of small footprint, reduced processing costs, and high efficiency

Inactive Publication Date: 2017-03-01
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem that the existing traditional biological method cannot directly and effectively treat wastewater with poor biodegradability and high concentration of ammonium sulfate, and provides a treatment method for high-concentration ammonium sulfate industrial wastewater

Method used

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  • A treatment method for high-concentration ammonium sulfate industrial wastewater
  • A treatment method for high-concentration ammonium sulfate industrial wastewater
  • A treatment method for high-concentration ammonium sulfate industrial wastewater

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Experimental program
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specific Embodiment approach 1

[0017] Specific embodiment one: a kind of processing method for high-concentration ammonium sulfate industrial wastewater of the present embodiment is carried out according to the following steps:

[0018] 1. Chlorination treatment: add sodium hypochlorite solution with a mass concentration of 10% to 20% to the raw water sample, so that the concentration of sodium hypochlorite in the raw water sample is 1g / L to 10g / L, and chlorination is obtained after stirring for 0.5h to 2h Water samples after treatment;

[0019] 2. Iron-carbon filler treatment: Add iron-carbon filler to the chlorinated water sample obtained in step 1, so that the chlorinated water sample is immersed in the iron-carbon filler, and then aerated for 1h to 4h to obtain the iron-carbon filler treated water. Sample;

[0020] 3. Oxidation treatment by Fenton method: add hydrogen peroxide with a mass concentration of 30% to 40% to the water sample after the iron-carbon filler treatment obtained in step 3, and then...

specific Embodiment approach 2

[0028] Embodiment 2: This embodiment differs from Embodiment 1 in that: the chemical composition and content of the iron-carbon filler described in step 2 is refined iron powder ≥ 75%, and the carbon content is 17% ± 1%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in step 2, aeration is performed for 2 hours to obtain a water sample treated with iron-carbon filler. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a treatment method of ammonium-sulfate-containing industrial wastewater, particularly a treatment method of high-concentration ammonium sulfate industrial wastewater. The method aims to solve the problem that the existing traditional biological process can not directly and efficiently treat low-biodegradability high-ammonium-sulfate-concentration wastewater. The method comprises the following steps: 1. chlorination treatment; 2. iron carbon filler treatment; 3. Fenton-process oxidation treatment; 4. air stripping treatment; 5. photochemical oxidation-process treatment; and 6. activated sludge treatment. By using the water treatment method, the degradation rates of COD (chemical oxygen demand) and ammonia nitrogen can respectively reach 99.9%; and in the treatment process, the method can recover ammonia gas for reutilization, thereby implementing circular economy in deed. The treatment method has the advantages of high stability, high treatment efficiency, small occupied area of complete project equipment and the like, and can obviously enhance the biodegradability of the wastewater.

Description

technical field [0001] The invention relates to a treatment method for industrial waste water containing ammonium sulfate. Background technique [0002] The rapid development of my country's industrial industry has promoted the rapid development of the economy. At the same time, the resulting environmental problems have become increasingly prominent, especially water pollution. Especially in the fields of chemical industry, pharmacy, dyestuff, etc., the wastewater has the characteristics of high concentration, high toxicity, refractory degradation, complex composition and extremely poor biodegradability. Among them, the discharge of nitrogen-containing compounds has increased sharply. Ammonia nitrogen has become the main pollutant of the water environment, and has attracted widespread attention from all walks of life. The research on the treatment technology of ammonia nitrogen in wastewater has become the focus and hot spot of water pollution control. At the same time, ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/34
Inventor 邢子鹏刘雪峰朱琦周卫于秀娟
Owner HEILONGJIANG UNIV