Composite phosphate removing decolorant and method thereof for removing phosphor and decolouring

A decolorizing agent and waste water technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the rare problems of phosphorus removal and decolorization, achieve safe decolorization, low comprehensive cost, The effect of mild operating conditions

Active Publication Date: 2012-10-17
上海丰远环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although our country has done a lot of research on decolorizers and phosphorus removal agents, it is rare to really put phosphorus and decolorization together.

Method used

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  • Composite phosphate removing decolorant and method thereof for removing phosphor and decolouring
  • Composite phosphate removing decolorant and method thereof for removing phosphor and decolouring
  • Composite phosphate removing decolorant and method thereof for removing phosphor and decolouring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of compound phosphorus removal decolorizing agent is made of ferrous sulfate, calcium hypochlorite, NaClO 3 、H 2 o 2 , HPAA, borax and purified water are produced by polymerization in proportion, and the mass ratio is 1:0.1:0.05:0.001:0.01:0.001:0.01. Using the decolorization method of the above-mentioned composite phosphorus removal and decolorization agent, the ratio of high-chroma printing and dyeing wastewater to the composite phosphorus removal and decolorization agent (printing and dyeing wastewater / phosphorus removal and decolorization agent) is: 1:0.015, stirred evenly at room temperature, and statically After 20 minutes, the decolorization rate of printing and dyeing wastewater can reach 86.57%.

Embodiment 2

[0016] The operating conditions are the same as in Example 1, except that the composition ratio of the composite phosphorus removal and decolorizing agent is 1:0.15:0.1:0.0015:0.015:0.015:0.015. Use high-chroma printing and dyeing wastewater and the composite phosphorus removal and decoloring agent in proportion (printing and dyeing wastewater / phosphorus removal and decoloring agent) in a ratio of 1:0.02, stir evenly at room temperature, and let it stand for 20 minutes to make the decolorization rate of printing and dyeing wastewater Reached 95.65%.

Embodiment 3

[0018] The operating conditions are the same as in Example 1, except that the composition ratio of the composite dephosphorization and decolorizing agent is 1:0.2:0.5:0.015:0.02:0.02:0.015. Use the high chroma traditional Chinese medicine pharmaceutical wastewater and the compound dephosphorization and decolorizing agent in proportion (organic wastewater of traditional Chinese medicine pharmaceutical / dephosphorization and decolorizing agent): 1:0.025, stir evenly at room temperature, and let it stand for 20 minutes, which can make the traditional Chinese medicine pharmaceutical The decolorization rate of organic wastewater reaches 99.15%.

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Abstract

The invention belongs to the chemical field, and provides a composite phosphate removing decolorant and a method for removing phosphor and decolouring, the invention solves the technical problems of phosphor removal and poor decolouring effect of the product during the waste water treatment process in the prior art, the composite phosphate removing decolorant of the present invention is polymerized by ferrous sulphate, calcium hypochlorite, NaClO3, H2O2, HPMA, borax and purified water in proportion, and the mass ratio are 1: 0.1-0.75: 0.001-0.5: 0.001-0.15: 0.01-0.28: 0.001-0.15: 0.01-55.50. The phosphor removal and decolouring method comprises the following steps: mixing a phosphate removing decolorant and waste water according to mass ratio, uniformly stirring under normal temperature, and standing for 20-90 minutes, wherein the phosphate removal rate of the waste water can reach 70-95.74, and the decolourization rate can reach 70-99.99. The method of the invention has the advantages of simple operation, convenient usage, good effect of phosphor removal and decolouring.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a decolorizing agent, in particular to a composite dephosphorization and decolorization agent and methods for dephosphorization and decolorization thereof. Background technique [0002] Water is the most important resource on the earth, and it is also the most abundant and widely distributed compound in nature, with a total amount of about 1.4*10 19 m 3 However, most of them are brackish seawater, and the fresh water available for development and utilization only accounts for 0.3% of the total water volume. Therefore, fresh water is an extremely limited and precious resource. With the acceleration of the pace of human industrialization and the gradual improvement of people's living standards, the consumption of fresh water is increasing day by day. my country's water resources account for about 1 / 4 of the world's per capita level. With the rapid development of my co...

Claims

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Application Information

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IPC IPC(8): C02F1/463C02F1/58
Inventor 刘崇荣刘辉刘晔
Owner 上海丰远环保科技有限公司
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