Attapulgite carrier flocculation water treatment agent and production method

A technology of attapulgite and water treatment agent, which is applied in the fields of flocculation/sedimentation water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problems of high cost, complex product composition and processing technology, poor environmental protection, etc., and achieves dehydration performance. Increased, less environmental risk, release inhibition effect

Inactive Publication Date: 2011-08-17
江苏汇丰矿业有限公司 +2
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of its technical route, there are two main disadvantages: first, aluminum salt alum is still used as the coagulant, and the environmental protection of the product is very poor; second, modified starch is used as the raw material, and the cost of the product is relatively high
From the point of view of its technical route, there are mainly four shortcomings: 1. The product contains trimethylhexadecyl ammonium bromide, and both bromine and ammonium ions have certain environmental risks; 2. The attapulgite in the product is made of The sodiumization proc

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 35 parts of iron salt, 3 parts of sulfuric acid, 6 parts of water, 6 parts of oxidant (sodium chlorate), stir and react for 15 minutes, add 5 parts of dry or wet purified attapulgite, continue to stir and react until the attapulgite is completely After dispersion, 1.5 parts of sodium silicate was added, stirred for 1 hour, and left to stand for 24 hours to obtain a deep red liquid attapulgite carrier flocculation water treatment agent product.

[0031] The water of the Guxin River section next to Hangzhou Wanxiang Park is used as the small-scale application object of the water supply and purification project. The water of this river comes from the West Lake, and the perennial turbidity is between 9-22NTU, which belongs to the medium and low turbidity water at normal temperature, which is typical for the water network in southern my country. The coagulation test adopts Zhongrun ZR4-6 coagulation test mixer, which conforms to the national standard of the People's Rep...

Embodiment 2

[0045] Take 45 parts of iron salt, 4.5 parts of sulfuric acid, 5 parts of water, 7 parts of oxidant (sodium chlorate and hydrogen peroxide 1:1), stir and react for 15 minutes, add 5 parts of dry or wet purified attapulgite, and continue to stir and react After the attapulgite is completely dispersed, add 3 parts of sodium silicate, stir for 1 hour, and let stand for 24 hours to obtain a deep red liquid attapulgite carrier flocculation water treatment agent product.

[0046] The wastewater from an oxidation pond of a printing and dyeing company in Huzhou was used as a small-scale application object of an industrial wastewater treatment project. The COD of the wastewater is about 2000mg / L, the pH value is 6-9, and the water temperature is 15-35°C, which belongs to typical printing and dyeing wastewater. The coagulation test adopts Zhongrun ZR4-6 coagulation test mixer, which conforms to the national standard of the People's Republic of China (GB / T16881-1997) - water coagulation,...

Embodiment 3

[0051] Take 40 parts of iron salt, 5 parts of sulfuric acid, 5 parts of water, 6 parts of oxidizing agent (sodium chlorate and hydrogen peroxide 1:1), stir and react for 20 minutes, add 10 parts of attapulgite purified by dry method or wet method, and continue to stir and react After the attapulgite is completely dispersed, add 1 part of sodium silicate and 0.5 part of sodium phosphate, stir for 1 hour, and let stand for 24 hours to obtain a deep red liquid attapulgite carrier flocculation water treatment agent product.

[0052] Take a certain section of river water in the Jiulong River Basin of Fujian Province as the small test object of the algae removal performance of the present invention. The pH value of the water sample is 8-9, and the algae content is about 5.0×10 7 , turbidity 45NTU. According to "Test Method for Coagulation and Flocculation of Water in Cup and Tank" (GB / T16881-97) and "Test Method for Coagulation and Sedimentation Beaker" (CECS130:2001), the algae re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an attapulgite carrier flocculation treatment agent and a production method and aims at providing a water treatment agent which is safe and nontoxic, has large alumen ustum, is rapid to settle and separate and has low operation cost and a production method. The technical scheme of the invention comprises the following points that the attapulgite carrier flocculation water treatment agent is designed by a carrier flocculation technical idea, wherein ferric salt is used as a main coagulant and attapulgite is used as a carrier. The ferric iron coagulant is processed by an oxidation synthesis process and is simultaneously activated and modified under an acidic condition, and the attapulgite and related auxiliaries are added into the activated and modified ferric iron coagulant to be compounded so as to obtain a liquid water purification agent product. The attapulgite carrier flocculation water treatment agent and the production method have the characteristics that the attapulgite carrier flocculation water treatment agent does not contain aluminum ions and has low environmental risk and meets the development direction of a water treatment medicament; due to the adoption of the carrier flocculation idea, the alumen ustum settling speed is optimized and the pH adaptability is also obviously improved; by the attapulgite carrier flocculation water treatment agent, algae is effectively removed and no algae toxins are generated; sludge is easy to process; and the attapulgite carrier flocculation water treatment agent and the production method can be widely used in the field of water supply and drainage engineering and algae removal in the water environment.

Description

technical field [0001] The invention relates to the field of water supply and drainage agents, in particular to an attapulgite carrier flocculation water treatment agent and a production method. Background technique [0002] Coagulation sedimentation process is the most common physical and chemical method in water supply and drainage treatment. It is widely used in the fields of algae removal, drinking water purification and industrial wastewater treatment. It can effectively remove SS in wastewater and reduce COD cr , Decolorization, deodorization, etc. In 2006, the per capita daily water consumption of urban households in my country has increased from less than 80L in 1980 to 155L, and the total urban water supply has reached 500×10 8 t / a. Based on this data, it is conservatively estimated that the annual demand for water purifiers in my country is at least 250,000 tons based on the demand for water purifiers per ton of water at 5-30ppm. In 2008, the total amount of ind...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F1/52C02F1/28
Inventor 张越尹永军石磊
Owner 江苏汇丰矿业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap