Phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking waste water, and preparation method thereof

A sewage treatment agent, phosphorus-free corrosion inhibition technology, applied in water/sewage treatment, water/sludge/sewage treatment, process wastewater treatment, etc., can solve the problems of environmental secondary pollution, high toxicity, etc., and reduce sewage discharge Quantity, low production cost, not easy to eutrophication effect

Inactive Publication Date: 2017-05-10
NANNING HEIJING INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tungsten-based formula water treatment agents are highly toxic and will cause secondary pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, consisting of the following raw materials in parts by weight: 5 parts of aluminum iron chloride, 32 parts of activated carbon, 4 parts of organic alkali, 1 part of sodium polyaspartate, propylene 5 parts of amide, 21 parts of vermiculite, 14 parts of diatomaceous earth, 5 parts of sodium humate, 2 parts of sodium propylene sulfonate, 3 parts of sodium silicate, 1 part of oxalic acid, 5 parts of polyferric sulfate, and 4 parts of aluminum sulfate, of which , the organic base is a mixture of ethanolamine and benzotriazole in a weight ratio of 1:2.

[0024] In the present embodiment, the preparation method of the phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, the steps are as follows:

[0025] 1) Weigh the organic base, put it into the reaction kettle, add 8 times the amount of ethanol, raise the temperature to 55°C, and stir for 30 minutes to ...

Embodiment 2

[0032] A phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, consisting of the following raw materials in parts by weight: 6 parts of aluminum iron chloride, 35 parts of activated carbon, 5 parts of organic alkali, 1.5 parts of sodium polyaspartate, propylene 7 parts of amide, 23 parts of vermiculite, 17 parts of diatomaceous earth, 8 parts of sodium humate, 5 parts of sodium propylene sulfonate, 4 parts of sodium silicate, 1.3 parts of oxalic acid, 6 parts of polyferric sulfate, and 5 parts of aluminum sulfate, of which , the organic base is a mixture of ethanolamine and benzotriazole in a weight ratio of 1:2.

[0033] In the present embodiment, the preparation method of the phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, the steps are as follows:

[0034] 1) Weigh the organic base, put it into the reaction kettle, add 9 times the amount of ethanol, raise the temperature to 58°C, and stir for 30 minut...

Embodiment 3

[0041] A phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, consisting of the following raw materials in parts by weight: 7 parts of aluminum iron chloride, 34 parts of activated carbon, 6 parts of organic alkali, 1.8 parts of sodium polyaspartate, propylene 8 parts of amide, 23 parts of vermiculite, 15.5 parts of diatomaceous earth, 7 parts of sodium humate, 3.6 parts of sodium propylene sulfonate, 5 parts of sodium silicate, 1.4 parts of oxalic acid, 7 parts of polyferric sulfate, 5.5 parts of aluminum sulfate, of which , the organic base is a mixture of ethanolamine and benzotriazole in a weight ratio of 1:2.

[0042] In the present embodiment, the preparation method of the phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater, the steps are as follows:

[0043] 1) Weigh the organic base, put it into the reaction kettle, add 9 times the amount of ethanol, raise the temperature to 57°C, and stir for 35 min...

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PUM

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Abstract

The invention discloses a phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking waste water. The phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking waste water consists of the following raw materials in parts by weight: 5 to 10 parts of aluminum-ferric chloride, 32 to 36 parts of activated carbon, 4 to 8 parts of organic alkali, 1 to 3 parts of sodium polyaspartate, 5 to 10 parts of acrylic amide, 21 to 25 parts of vermiculite, 14 to 17 parts of diatomite, 5 to 9 parts of sodium humate, 2 to 5 parts of sodium allylsulfonate, 3 to 7 parts of sodium silicate, 1 to 2 parts of oxalic acid, 5 to 10 parts of polyferric sulfate and 4 to 7 parts of aluminum sulfate. The invention also discloses a preparation method of the phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking waste water. The sewage treatment agent prepared by the method adopts a phosphorus-free composite formula, is nonhazardous and insusceptible to eutrophication, can prevent harm of red tide in the surrounding water area and avoid secondary pollution, and accords with environmental protection requirements.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a phosphorus-free corrosion-inhibiting sewage treatment agent for papermaking wastewater and a preparation method thereof. Background technique [0002] The discharge water treatment of paper-making enterprises has always been the key monitoring object of wastewater treatment and environmental protection. Large-scale paper-making enterprises will have discharge water treatment, such as reusing the treated pulping washing water as reclaimed water. The treatment of discharged water requires the support of technology and capital investment, and there are many difficulties for many small enterprises, which also makes it difficult to eliminate the random discharge of waste water and waste. According to statistics, there are more than 1,000 small and medium-sized paper mills in China with an annual output of less than 50,000 tons. Such a large number of small and medium-sized enterprise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F5/12C02F103/28
CPCC02F1/00C02F5/125C02F2103/28C02F2303/08C02F2303/22
Inventor 张春花
Owner NANNING HEIJING INFORMATION TECH CO LTD
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