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Industrial acid wastewater treating agent

A technology for acidic wastewater and chemical treatment, which is applied in water/sewage treatment, neutralized water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of poor flocculation effect and unqualified effluent in acidic wastewater The effects of many types, reduced usage, and many implementation steps

Inactive Publication Date: 2020-02-11
XINJIANG DELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes an agent for industrial acid wastewater treatment, which aims to solve the problem that the existing sewage treatment agent has poor flocculation effect in treating acid wastewater, resulting in unqualified effluent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. A medicament for industrial acid wastewater treatment, consisting of the following raw materials in parts by weight:

[0025] Preferably, it consists of the following raw materials in parts by weight: 30 parts of slaked lime, 12 parts of alkaloid, 5 parts of calcium lignosulfonate, 48 parts of flocculant and 5 parts of sodium silicate.

[0026] Wherein, the flocculant needs to be prepared separately, and the preparation method of the flocculant comprises the following steps:

[0027] (1) 30 parts of hydrochloric acid with a mass fraction of 30% are reacted with 10 parts of calcium aluminate, the reaction temperature is 80-110° C., and the reaction time is 1 hour;

[0028] (2) adding 5 parts of mass fractions to the reaction solution of step (1) is 40% ferric chloride, 5 parts of polydimethyldiallylammonium chloride, 50 parts of water, and continued to react for 1 hour;

[0029] (3) collecting the reaction product obtained in step (2) to obtain the flocculant;

[00...

Embodiment 2

[0033] 1. A medicament for industrial acid wastewater treatment, consisting of the following raw materials in parts by weight:

[0034] Among them, the raw materials are composed by weight parts: 35 parts of slaked lime, 13 parts of alkaloid, 2 parts of calcium lignosulfonate, 45 parts of flocculant, and 5 parts of sodium silicate.

[0035] Wherein, the flocculant needs to be prepared separately, and the preparation method of the flocculant comprises the following steps:

[0036] (1) 30 parts of hydrochloric acid with a mass fraction of 30% are reacted with 10 parts of calcium aluminate, the reaction temperature is 80-110° C., and the reaction time is 1 hour;

[0037] (2) adding 5 parts of mass fractions to the reaction solution of step (1) is 40% ferric chloride, 5 parts of polydimethyldiallylammonium chloride, 50 parts of water, and continued to react for 1 hour;

[0038] (3) collecting the reaction product obtained in step (2) to obtain the flocculant;

[0039] (4) After ...

Embodiment 3

[0042] 1. A medicament for industrial acid wastewater treatment, consisting of the following raw materials in parts by weight:

[0043] Preferably, it consists of the following raw materials in parts by weight: 40 parts of slaked lime, 12 parts of alkaloid, 4 parts of calcium lignosulfonate, 40 parts of flocculant and 4 parts of sodium silicate.

[0044] Wherein, the flocculant needs to be prepared separately, and the preparation method of the flocculant comprises the following steps:

[0045] (1) 30 parts of hydrochloric acid with a mass fraction of 30% are reacted with 10 parts of calcium aluminate, the reaction temperature is 80-110° C., and the reaction time is 1 hour;

[0046] (2) adding 5 parts of mass fractions to the reaction solution of step (1) is 40% ferric chloride, 5 parts of polydimethyldiallylammonium chloride, 50 parts of water, and continued to react for 1 hour;

[0047] (3) collecting the reaction product obtained in step (2) to obtain the flocculant;

[00...

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PUM

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Abstract

The invention relates to the technical field of wastewater treating agents, and particularly provides an industrial acid wastewater treating agent. The treating agent is mainly prepared from raw materials as follows: slaked lime, alkaloid, calcium lignosulfonate, a flocculating agent and sodium silicate. Compared with the prior art, the treating agent has the beneficial effects as follows: the prepared flocculant can better improve pH of effluent and has an efficient flocculation function, experiments prove that the prepared flocculant can regulate the pH of acid wastewater with pH being 1-3 to 7-8, produce large flocs with salt, oil, chloride ions or sulfate radicals as well as metal ions and has the characteristic of high produced floc settling speed, meanwhile, the use amount of polyacrylamide can be effectively reduced or removed, and the production process is simple, convenient to use and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment agents, in particular to an industrial acid wastewater treatment agent. Background technique [0002] At present, some of the wastewater produced in the production process of industrial enterprises is acidic wastewater, which contains salt and oil, and contains a large amount of chloride ions or sulfate radicals and metal ions. It is a typical industrial wastewater containing refractory degradable. If handled properly, it will cause great harm to humans and the environment. In conventional sewage treatment, it is difficult to treat directly. It needs to undergo chemical treatment first, and then carry out biological treatment after acid-base neutralization. There are many dosing points and types of chemicals, and the operation is cumbersome. [0003] Traditional sewage treatment agents, such as polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, non-ionic, zwitterionic p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/66
CPCC02F1/66C02F1/56C02F1/5236C02F1/52
Inventor 黄豹陆明鲍会
Owner XINJIANG DELAND
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