High-efficiency defoaming agent for sewage treatment, and preparation method and application thereof
A technology of sewage treatment and defoaming agent, which is applied in the direction of degassed water/sewage treatment, separation methods, chemical instruments and methods, etc. It can solve the problems of affecting sewage treatment efficiency, complex sewage components, poor defoaming ability, etc., and achieve control Effects of foaming, improving fermentation efficiency, and improving processing capacity
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Embodiment 1
[0027] A high-efficiency defoamer for sewage treatment, comprising the following components in parts by weight: 30 parts of polydimethylsiloxane, 2 parts of hydrophobic fumed silica, 20 parts of polyether modified silicone oil, polydithiodipropane 5 parts of sodium sulfonate, 4 parts of isopropyl myristate, 5 parts of n-butyl oleate, 1 part of menthol, 40 parts of deionized water;
[0028] The polydimethylsiloxane is a hydroxyl-terminated polydimethylsiloxane with a viscosity of 1000-2000Cst and a hydroxyl content of 8%-10%;
[0029] The appearance of the polyether modified silicone oil is light yellow transparent oily liquid; when the temperature is 25°C, the density is 1.03g / ml; the viscosity is 2000-3000Cst.
[0030] A preparation method of high-efficiency defoamer for sewage treatment, comprising the following steps:
[0031] (1) Weigh hydrophobic fumed silica and sodium polydisulfide dipropane sulfonate by weight and carry out planetary ball milling in the jar for 1 hour...
Embodiment 2
[0037] A high-efficiency defoamer for sewage treatment, comprising the following components in parts by weight: 32 parts of polydimethylsiloxane, 3 parts of hydrophobic fumed silica, 23 parts of polyether modified silicone oil, polydithiodipropane 6 parts of sodium sulfonate, 5 parts of isopropyl myristate, 6 parts of n-butyl oleate, 2 parts of menthol, 42 parts of deionized water;
[0038] The polydimethylsiloxane is a hydroxyl-terminated polydimethylsiloxane with a viscosity of 1000-2000Cst and a hydroxyl content of 8%-10%;
[0039] The appearance of the polyether modified silicone oil is light yellow transparent oily liquid; when the temperature is 25°C, the density is 1.03g / ml; the viscosity is 2000-3000Cst.
[0040] A preparation method of high-efficiency defoamer for sewage treatment, comprising the following steps:
[0041] (1) Weigh hydrophobic fumed silica and sodium polydisulfide dipropane sulfonate by weight and carry out planetary ball milling in a tank for 1.3 ho...
Embodiment 3
[0047] A high-efficiency defoamer for sewage treatment, comprising the following components in parts by weight: 35 parts of polydimethylsiloxane, 4 parts of hydrophobic fumed silica, 25 parts of polyether modified silicone oil, polydipropylene disulfide 8 parts of sodium sulfonate, 6 parts of isopropyl myristate, 7 parts of n-butyl oleate, 3 parts of menthol, 45 parts of deionized water;
[0048] The polydimethylsiloxane is a hydroxyl-terminated polydimethylsiloxane with a viscosity of 1000-2000Cst and a hydroxyl content of 8%-10%;
[0049] The appearance of the polyether modified silicone oil is light yellow transparent oily liquid; when the temperature is 25°C, the density is 1.03g / ml; the viscosity is 2000-3000Cst.
[0050] A preparation method of high-efficiency defoamer for sewage treatment, comprising the following steps:
[0051] (1) Weigh hydrophobic fumed silica and sodium polydisulfide dipropane sulfonate by weight and carry out planetary ball milling in a jar for 1...
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Abstract
Description
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Application Information

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