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Preparation method of polysilicate ferric composite flocculant

A composite flocculant, polyiron silicate technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, textile industry wastewater treatment, etc., to achieve the effects of less investment, low operating costs, and strong economic benefits

Inactive Publication Date: 2021-03-12
安徽瑞和新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of resource utilization of saturated waste constructed wetland system materials, reactivation of waste materials, restoration of its adsorption capacity, and turning waste into treasure, the present invention provides a higher additional Valuable polysilicate iron composite flocculant

Method used

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  • Preparation method of polysilicate ferric composite flocculant

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Embodiment 1

[0021] A polysilicate iron composite flocculant prepared by utilizing the waste constructed wetland system material after saturation, comprising the following steps:

[0022] Step 1, prepare polysilicic acid solution:

[0023] Dilute sodium silicate with water to form sodium silicate aqueous solution, add waste acid produced in the process of producing titanium dioxide to sodium silicate aqueous solution, adjust pH value of sodium silicate aqueous solution to 2.7, activate for 30 minutes, and obtain polysilicic acid solution ;

[0024] Step 2, preparing the composite extract of waste aquatic plants:

[0025] Wash the discarded aquatic plants Acorus calamus, Zailihua, water onion, and chrysanthemum with a mass ratio of 1:1:1:1, dry them in the air, and then dry and pulverize them, and then add them to a hot water bath at 100°C for 10 minutes. Cool and filter after 1 hour, vacuum-dry the filtrate to obtain waste aquatic plant extract; dissolve chitosan in 1.5% acetic acid solu...

Embodiment 2

[0031] A polysilicate iron composite flocculant prepared by utilizing the waste constructed wetland system material after saturation, comprising the following steps:

[0032] Step 1, prepare polysilicic acid solution:

[0033] Dilute the sodium silicate with water to form a sodium silicate aqueous solution, add waste acid produced during the production of titanium dioxide to the sodium silicate aqueous solution, adjust the pH value of the sodium silicate aqueous solution to 3.1, and activate it for 40 minutes to obtain a polysilicic acid solution ;

[0034] Step 2, preparing the composite extract of waste aquatic plants:

[0035] Wash the discarded aquatic plants with water calamus, water spring onion, and dry umbrella grass at a mass ratio of 1:1:2, dry them in the air, and then dry and pulverize them, then add them to a hot water bath at 100°C for 10 hours, then cool and filter. The filtrate is vacuum-dried to obtain the waste aquatic plant extract; the chitosan is dissolv...

Embodiment 3

[0041] A polysilicate iron composite flocculant prepared by utilizing the waste constructed wetland system material after saturation, comprising the following steps:

[0042] Step 1, prepare polysilicic acid solution:

[0043] Dilute the sodium silicate with water to form a sodium silicate aqueous solution, add waste acid produced during the production of titanium dioxide to the sodium silicate aqueous solution, adjust the pH value of the sodium silicate aqueous solution to 2.8, and activate for 40 minutes to obtain a polysilicic acid solution ;

[0044] Step 2, preparing the composite extract of waste aquatic plants:

[0045] Wash the discarded aquatic plants Acorus calamus, Zailihua, water onion, and chrysanthemum with a mass ratio of 1:1:1:1, dry them in the air, and then dry and pulverize them, and then add them to a hot water bath at 100°C for 10 minutes. Cool and filter after 1 hour, vacuum-dry the filtrate to obtain waste aquatic plant extract; dissolve chitosan in 1%...

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Abstract

The invention discloses a polysilicate ferric composite flocculant prepared from a saturated waste constructed wetland system material, and relates to the field of preparation of composite flocculantsand resource utilization of waste materials. Aquatic plants, fillers and the like in a saturated waste constructed wetland system are used as raw materials, a waste aquatic plant composite extract and a modified waste filler polyferric chloride solution are prepared to reactivate the waste material and recover the adsorption capacity of the waste material. The waste aquatic plant composite extract and the modified waste filler polyferric chloride solution are mixed with a polysilicic acid solution, so that the polysilicate ferric composite flocculant is prepared by utilizing the saturated waste constructed wetland system material, and the prepared flocculant has a good effect in removing turbidity, chromaticity, COD, ammonia nitrogen, total phosphorus and the like. The method is simple inprocess and low in cost, the composite flocculant is prepared from the materials in the whole saturated waste constructed wetland, waste is turned into wealth, the sewage removal effect is efficientand excellent, a new way is opened up for waste resource utilization, and good social benefits, economic benefits and environmental benefits are achieved.

Description

technical field [0001] The invention relates to the field of composite flocculant preparation and waste material resource utilization, in particular to a polysilicate ferric silicate composite flocculant prepared by using saturated waste constructed wetland system materials, and the prepared flocculant has a better treatment effect on various water quality indicators Balanced and more efficient. Background technique [0002] Known as the "kidney of nature", the artificial wetland is a new type of sewage treatment process, which has the characteristics of low investment cost, stable treatment effect, and aesthetic value, and integrates environmental and economic benefits. The main components of constructed wetlands are: fillers, aquatic plants, microorganisms, water bodies, etc. The purification of sewage is mainly the result of the joint action of fillers, aquatic plants and microorganisms. When the sewage flows through the constructed wetland, the filler removes nitrogen, ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F103/30
CPCC02F1/5236C02F1/5263C02F1/54C02F1/56C02F2103/30
Inventor 崔征王达道徐志峰祝烨然唐修生李建彭涛
Owner 安徽瑞和新材料有限公司