Modified environment-friendly flocculant for municipal sewage and preparation method of flocculant

A technology of urban sewage and flocculants, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of ineffective removal of refractory organic matter, etc., and is suitable for large-scale Industrial application, strong practicability and stable performance

Inactive Publication Date: 2017-06-13
SUZHOU DINGYU ENERGY EFFICIENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment process can remove almost all the organic matter that constitutes BOD, but it cannot effectively remove the refractory organic matter that constitutes COD. Even the well-treated secondary effl...

Method used

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  • Modified environment-friendly flocculant for municipal sewage and preparation method of flocculant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Weigh 5 parts of biological sludge, 14 parts of straw powder, 5 parts of camphor leaves, 2 parts of apatite, 5 parts of lignin, 15 parts of expanded vermiculite powder, 2 parts of calamine powder, activated carbon fiber 4 parts of silk, 5 parts of hydroxyl acrylic resin, 10 parts of polyacrylate, 6 parts of dimethylethanolamine, 2 parts of disodium edetate, 4 parts of aluminum oxide, 3 parts of activated silica, anionic polypropylene 1 part amide, 3 parts sorbitol, 1 part stearamide, 4 parts sodium naphthenate, 2 parts vinyltrimethoxysilane, 1 part potassium permanganate;

[0024] (2) Wash the biological sludge, straw powder, camphor leaves, expanded vermiculite powder, and calamine powder, dry, cool to room temperature, and the drying temperature is 60°C;

[0025] (3) Add the dry matter of step (2), apatite, lignin, activated carbon fiber filaments, and disodium edetate into the ceramic furnace, slowly inject liquid nitrogen, and mechanically stir until the dry mat...

Embodiment 2

[0032] (1) Weigh 6 parts of biological sludge, 15 parts of straw powder, 8 parts of camphor leaves, 4 parts of apatite, 6 parts of lignin, 18 parts of expanded vermiculite powder, 3 parts of calamine powder, activated carbon fiber 5 parts of silk, 7 parts of hydroxyacrylic resin, 11 parts of polyacrylate, 7 parts of dimethylethanolamine, 3 parts of disodium edetate, 5 parts of aluminum oxide, 4 parts of activated silica, anionic polypropylene 2 parts of amide, 4 parts of sorbitol, 2 parts of stearamide, 5 parts of sodium stearate, 3 parts of 3-glycidyl propyl trimethoxysilane, 2 parts of magnesium fumarate;

[0033] (2) Wash the biological sludge, straw powder, camphor leaves, expanded vermiculite powder, and calamine powder, dry, cool to room temperature, and the drying temperature is 62°C;

[0034] (3) Add the dry matter of step (2), apatite, lignin, activated carbon fiber filaments, and disodium edetate into the ceramic furnace, slowly inject liquid nitrogen, and mechanical...

Embodiment 3

[0041] (1) Weigh 7 parts of biological sludge, 15 parts of straw powder, 10 parts of camphor leaves, 8 parts of apatite, 7 parts of lignin, 21 parts of expanded vermiculite powder, 3 parts of calamine powder, activated carbon fiber 8 parts of silk, 9 parts of hydroxyl acrylic resin, 12 parts of polyacrylate, 8 parts of dimethylethanolamine, 4 parts of disodium edetate, 8 parts of aluminum oxide, 5 parts of activated silica, anionic polypropylene 3 parts of amide, 5 parts of sorbitol, 3 parts of stearamide, 7 parts of magnesium benzoate, 4 parts of 3-methacrylpropyl triethoxysilane, 2 parts of sodium lauryl silicate;

[0042] (2) Wash the biological sludge, straw powder, camphor leaves, expanded vermiculite powder, and calamine powder, dry, cool to room temperature, and the drying temperature is 64°C;

[0043] (3) Add the dry matter of step (2), apatite, lignin, activated carbon fiber filaments, and disodium edetate into the ceramic furnace, slowly inject liquid nitrogen, and mec...

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Abstract

The invention discloses a modified environment-friendly flocculant for municipal sewage and a preparation method of the flocculant. The modified environment-friendly flocculant is prepared from raw materials in parts by weight as follows: 5-8 parts of biological bacterial sludge, 14-16 parts of straw powder, 5-12 parts of cinnamomum camphora leaf, 2-9 parts of apatite, 5-8 parts of lignin, 15-25 parts of expanded vermiculite powder, 2-4 parts of calamine powder, 4-9 parts of activated carbon fiber, 5-10 parts of hydroxylated acrylic resin, 10-12 parts of polyacrylate, 6-9 parts of dimethylethanolamine, 2-5 parts ofdisodium ethylenediaminetetraacetate, 4-9 parts of aluminium oxide, 3-6 parts of activated silica, 1-4 parts of anionic polyacrylamide, 3-6 parts of sorbitol, 1-4 parts of octadecanamide, 4-8 parts of a heat stabilizer, 2-5 parts of a coupling agent and 1-3 parts of a coagulant aid. The prepared flocculant is stable in performance and can effectively remove hazardous substances in the municipal sewage, and treated sewage can be reused effectively. The invention further discloses the corresponding preparation method.

Description

technical field [0001] The invention relates to the field of wastewater treatment agents, in particular to a modified and environmentally friendly urban sewage flocculant and a preparation method thereof. Background technique [0002] Municipal sewage is all drainage collected through the sewer system, and it is the mixed water of various domestic sewage, industrial wastewater and urban rainfall runoff discharged into the sewer system. Domestic sewage is the water discharged from people's daily life. It is the water discharged from households, public facilities (restaurants, hotels, theaters, stadiums, institutions, schools and shops, etc.) and living facilities such as kitchens, toilets, bathrooms and laundry rooms in factories. The water quality of this kind of sewage is characterized by high organic matter, such as starch, protein, oil, etc., as well as inorganic matter such as nitrogen, phosphorus, etc. In addition, it also contains pathogenic microorganisms and more su...

Claims

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Application Information

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IPC IPC(8): C02F3/34
Inventor 陈红嘉
Owner SUZHOU DINGYU ENERGY EFFICIENT EQUIP
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