A method for efficient adsorption treatment of wastewater containing low concentration roxarsone

An adsorption treatment, low-concentration technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Large problems, such as simple preparation method, easy-to-obtain raw materials, and low-consumption treatment.
CN103553245BInactive Publication Date: 2015-08-05NANJING NORMAL UNIVERSITY
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING NORMAL UNIVERSITY
Publication Date
2015-08-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention discloses a method for efficiently adsorbing waste water containing low-concentration roxarsone, which belongs to the technical field of sewage treatment. The steps of the present invention are: Step 1, preparing polyacrylic acid iron (Ⅲ) complex suspension adsorbent; Step 2, pretreating waste water containing low-concentration roxarsone to remove suspended solids in waste water; Step 3, adding to the step 2. Add polyacrylic acid iron (Ⅲ) complex suspension adsorbent to the wastewater obtained from pretreatment, and the content of the added polyacrylate iron (Ⅲ) complex suspension adsorbent in the pretreated wastewater is 0.5~ 3.0g / L; step 4, adjust the pH range of the adsorption system obtained in step 3 to be 6~9, stir and adsorb for 60~120min, let stand for 30~60min for precipitation, and then separate the solid from the liquid. The invention can treat waste water containing low-concentration roxarsone with high efficiency and low consumption, is convenient to operate and easy to control, and is almost not affected by the salt content in the waste water.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a method for efficiently adsorbing waste water containing low-concentration roxarsone. Background technique

[0002] With the acceleration of urbanization and industrialization in my country, the pollution of groundwater, surface water, and domestic water is becoming more and more serious. Water pollution and its prevention and control have become an important topic of widespread concern. On the one hand, people use methods such as environmentally friendly and green chemical synthesis routes to reduce pollution from the source and fundamentally; The new method is also becoming a hot spot at home and abroad. Through the joint efforts and practice of scientists, the treatment technologies for heavy metals, suspended solids (SS), biodegradable organic pollutants (BOD), nitrogen, phosphorus and other pollutants in water are becoming more and more perfect. H...

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