Attapulgite carrier flocculation water treatment agent and production method

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...

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 process is cationized, and it also contains siliceous filter aids. The main components are aluminosilicate, ceramic powder and glass powder, so the product composition and processing technology are complicated, resulting in high product costs; 3. The use of high-priced metal salts Mixture of aluminum, iron and magnesium salts, so the environmental risk of aluminum ions cannot be avoided

4. Judging from the examples, the consumption of the product is relatively large, reaching 5000mg / L, so it is easy to cause high project operating costs and a large amount of sludge treatment