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Sewage anaerobic scale prevention interferon and preparing method thereof

A technology of interferon and sewage, applied in anaerobic digestion treatment, water treatment parameter control, chemical instruments and methods, etc., can solve the problem of non-scaling of reactor UASB

Active Publication Date: 2019-10-01
CHENGDU WANCHAO SURFACE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no very effective agent to prevent UASB from fouling in the reactor

Method used

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  • Sewage anaerobic scale prevention interferon and preparing method thereof
  • Sewage anaerobic scale prevention interferon and preparing method thereof
  • Sewage anaerobic scale prevention interferon and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A sewage anaerobic anti-fouling interferon, which is composed of the following components in mass fraction: carboxyethyl thiosuccinic acid 21%; sodium ethylenediamine di-o-phenylacetate 9.9%; dithiocarbamate 5.9% %; fatty acid polyoxyethylene ether 0.79%; cobalt chloride 0.049% and the balance of desalted water.

[0034] The effective solid content of the interferon is not less than 50%, and the density at 20°C is not less than 1.25g / cm 3 .

[0035] A method for preparing sewage anaerobic anti-scaling interferon, comprising the steps of:

[0036] At room temperature, dissolve the desalinated water and cobalt chloride and stir evenly to obtain a cobalt chloride solution;

[0037] Add carboxyethylthiosuccinic acid, sodium ethylenediamine di-o-phenylacetate, sodium dithiocarbamate and polyoxyethylene fatty acid ether in sequence to the cobalt chloride solution, stir and mix evenly, let stand for 30 minutes, filter and pack, Obtain sewage anaerobic interferon.

Embodiment 2

[0039] A sewage anaerobic anti-scaling interferon, which is composed of the following components in mass fraction: 34.97% of carboxyethyl thiosuccinic acid; 9.9% of sodium ethylenediamine di-o-phenylacetate; 5.9% of sodium dithiocarbamate; Fatty acid polyoxyethylene ether 0.99%; cobalt chloride 0.098% and the balance desalted water.

[0040] The effective solid content of the interferon is not less than 50%, and the density at 20°C is not less than 1.25g / cm 3 .

[0041] A method for preparing sewage anaerobic anti-scaling interferon, comprising the steps of:

[0042] At 40°C, dissolve desalted water and cobalt chloride and stir evenly to obtain a cobalt chloride solution;

[0043] Add carboxyethylthiosuccinic acid, sodium ethylenediamine di-o-phenylacetate, sodium dithiocarbamate and polyoxyethylene fatty acid ether in sequence to the cobalt chloride solution, stir and mix evenly, let stand for 25 minutes, filter and pack, Obtain sewage anaerobic interferon.

Embodiment 3

[0045] A sewage anaerobic anti-scaling interferon, which is composed of the following components in mass fraction: 25% of carboxyethyl thiosuccinic acid; 12% of sodium ethylenediamine di-o-phenylacetate; 8% of sodium dithiocarbamate; Fatty acid polyoxyethylene ether 0.9%; cobalt chloride 0.08% and the balance desalted water.

[0046] The effective solid content of the interferon is not less than 50%, and the density at 20°C is not less than 1.25g / cm 3 .

[0047] A method for preparing sewage anaerobic anti-scaling interferon, comprising the steps of:

[0048] At 30°C, dissolve desalted water and cobalt chloride and stir evenly to obtain a cobalt chloride solution;

[0049] Add carboxyethylthiosuccinic acid, sodium ethylenediamine di-o-phenylacetate, sodium dithiocarbamate and polyoxyethylene fatty acid ether in sequence to the cobalt chloride solution, stir and mix evenly, let stand for 30 minutes, filter and pack, Obtain sewage anaerobic interferon.

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Abstract

The invention discloses a sewage anaerobic scale prevention interferon and a preparing method thereof. Effective components of the interferon comprise carboxyethyl thiosuccinic acid, dithiocarbamate,ethydiaminedhephen acetic-Na, fatty alcohol-polyoxyethy, cobalt chloride and desalted water. The preparing method comprises the steps of dissolving and uniformly stirring the desalted water and the cobalt chloride at the room temperature of 40 DEG C to obtain a cobalt chloride solution; sequentially adding the carboxyethyl thiosuccinic acid, ethydiaminedhephen acetic-Na, sodium dithiocarbamate andfatty alcohol-polyoxyethy into the cobalt chloride solution, conducting uniform stirring and mixing, conducting standing for 20-30 minutes, and then conducting filtering and subpackaging to obtain the sewage anaerobic scale prevention interferon. According to the sewage anaerobic scale prevention interferon, when a UASB reactor removes sewage COD, clogging and scaling do not occur to a circulating pipeline or an overflow pipe, and the purpose that the reactor safely runs for a long term is achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage anaerobic anti-scaling interferon and a preparation method thereof. Background technique [0002] The UASB reactor includes the following parts: water inlet and water distribution system, reactor pool and three-phase separator. [0003] The most important equipment in the UASB reactor is the three-phase separator, which is installed on the top of the reactor and divides the reactor into a lower reaction zone and an upper precipitation zone. In order to achieve a satisfactory settling effect of the sludge flocs / particles in the upflow in the settler, the first main purpose of the three-phase separator is to separate the biogas generated from the sludge bed / layer as efficiently as possible, especially Especially in the case of high load, the role of the reflection plate under the gas collection chamber is to prevent the biogas from escaping into the s...

Claims

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Application Information

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IPC IPC(8): C02F3/28
CPCC02F3/28C02F2209/08C02F2303/14C02F2305/00
Inventor 刘良刘思佳
Owner CHENGDU WANCHAO SURFACE TECH CO LTD
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