Purifying treatment agent for coal-washing wastewater and preparation method thereof

A technology for purification treatment and coal washing wastewater, which is applied in mining wastewater treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of unsatisfactory treatment effect, slow sedimentation speed and high cost, and achieve low cost, small dosage and high efficiency Effect

Inactive Publication Date: 2014-04-23
青岛中科菲力工程技术研发有限公司
3 Cites 24 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Although there are many types of flocculants in the market, most of them have problems suc...
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

Method used

The treatment agent made above is dropped into the coal washing water by the ratio of 50g/m3, the removal rate of suspended solids can reach 99.68%, and the precipitation speed is fast, and the...
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

Abstract

The invention discloses a purifying treatment agent for coal-washing wastewater and a preparation method thereof. The purifying treatment agent is prepared from the following materials in parts by weight: 30-40 parts of sepiolite, 15-20 parts of montmorillonite, 10-15 parts of medical stone, 15-20 parts of polyacrylamide, 5-10 parts of sodium polyacrylate, 3-6 parts of aluminium polychlorid, 2-4 parts of sodium lignin sulfonate, 3-5 parts of alum powder, 6-9 parts of ferrous sulfate, 8-12 parts of guar gum powder, 5-10 parts of nano carbon, 4-8 parts of porous calcium phosphate, 10-15 parts of carboxymethyl chitosan, 5-10 parts of sodium alginate, 2-3 parts of span-80, 1-2 parts of sodium lauryl sulfate, 1-2 parts of stearic acid and 0.5-1 parts of gamma-aminopropyltriethoxysilane. The purifying treatment agent disclosed by the invention has the advantages that the flocculation effect is good, impurity particles in coal-washing water can be rapidly agglutinate and settled, simultaneously heavy-metal elements in the coal-washing water can be absorbed, the purifying effect is very obvious, the water purifying effect is 4-6 times of that of the common flocculating agent; and the used amount is less, the efficiency is high, the cost is low, the benefit is high, the complete environmental-friendly effect is achieved and the application prospect is wide.

Application Domain

Technology Topic

Examples

  • Experimental program(1)

Example Embodiment

[0012] A purification treatment agent for coal washing wastewater, made of the following weight (kg) raw materials: sepiolite 35, montmorillonite 18, medical stone 12, polyacrylamide 16, sodium polyacrylate 8, polyaluminum chloride 4 , Sodium Lignosulfonate 3, Alum Powder 4, Ferrous Sulfate 7, Guar Gum Powder 10, Nano Carbon 8, Porous Calcium Phosphate 6, Carboxymethyl Chitosan 10, Sodium Alginate 8, Span 80 2, Sodium lauryl sulfate 1, stearic acid 2, γ-aminopropyl triethoxysilane 0.5.
[0013] A preparation method of a purification treatment agent for coal washing wastewater includes the following steps:
[0014] (1) Take sepiolite, montmorillonite and medical stone and mix them evenly, put them into 15% hydrochloric acid solution, heat to 80℃ in water bath, keep for 1h, take out, wash with distilled water to neutrality, dry, 720℃ Calcined for 2h, cooled to room temperature, crushed, added stearic acid, γ-aminopropyltriethoxysilane and sodium lignosulfonate, grind at high speed at 1500rpm for 20min, dried, crushed, and passed through a 150-mesh sieve;
[0015] (2) Add the above sieved powder to a proper amount of water to make a 60% slurry, add sodium polyacrylate, porous calcium phosphate, nano carbon, Span 80 and sodium lauryl sulfate, and grind at 3000 rpm for 10 minutes. Spray dry to form powder;
[0016] (3) Take the carboxymethyl chitosan, guar gum powder and sodium alginate and mix them evenly, add an appropriate amount of water to make a glue solution, and then add the powder obtained by spray drying, stir well, dry, crush, and After the 150 mesh sieve, it is mixed with polyacrylamide, polyaluminum chloride, alum powder, and ferrous sulfate, and the package is the finished product.
[0017] Press 50g/m of the treatment agent prepared above 3 The suspended solids removal rate can reach 99.68%, and the precipitation speed is fast. The effluent suspended solids concentration is 25.2mg/L, which can meet the water quality requirements of the coal washing process (suspended solids concentration ≤300mg/L).
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

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

Preparation method of low temperature resistance polysaccharide microbial flocculant and application thereof

InactiveCN105906070AGood flocculation effectReduce manufacturing costMicroorganism based processesWaste water treatment from plant processingKlebsiella oxytocaChemistry
Owner:克雷伯氏环保科技(苏州)有限公司

Classification and recommendation of technical efficacy words

  • Good flocculation effect
  • Good purification effect

Method for preparing compound flocculating agent

Owner:江苏中鹏环保集团有限公司
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