Medium preparation method for preventing soil groove sewage treatment system from being blocked
A technology of sewage treatment system and preparation method, which is applied in the direction of osmosis/dialysis water/sewage treatment, etc., can solve problems such as over-dependence, achieve high hydraulic load, good effluent quality, and eliminate the dependence of soil type selection.
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Embodiment 1
[0026] An anti-clogging soil trench sewage treatment system was constructed by using the present invention in a residential area in Shanghai.
[0027] This embodiment includes the following steps:
[0028] The first step is to select soil, sand, iron filings and bran, and mix ingredients according to the soil permeability coefficient, wherein the volume ratios of soil, sand, iron filings and bran are 57%, 36%, 4% and 3% in sequence. Soil, sand, iron filings and bran are stirred and mixed by a stirring device to make a silt mixture.
[0029] The soil is taken from the soil near Shanghai Jiading Brick and Tile Factory, and its permeability coefficient is 1.9×10 -7 cm / s;
[0030] Described sand is natural river sand, and its particle size range is 1-2mm;
[0031] The iron filings are pig iron filings with a particle size range of 0.1-10mm;
[0032] The bran refers to cereal bran, the particle size range of which is 0.1-2mm;
[0033] The second step is to select polyurethane ...
Embodiment 2
[0038] An apartment in Shanghai adopts the present invention to construct an anti-clogging soil trench sewage treatment system.
[0039] This embodiment includes the following steps:
[0040] The first step is to select soil, sand, iron filings and bran, and mix ingredients according to the soil permeability coefficient, wherein the volume ratios of soil, sand, iron filings and bran are 46%, 46%, 6% and 2% in turn, and the Soil, sand, iron filings and bran are stirred and mixed by a stirring device to make a silt mixture.
[0041] The soil is taken from the soil near Shanghai Jiading Brick and Tile Factory, and its permeability coefficient is 1.9×10 -7 cm / s;
[0042] Described sand is natural river sand, and its particle size range is 1-2mm;
[0043] The iron filings are pig iron filings with a particle size range of 0.1-10mm;
[0044]The bran refers to cereal bran, the particle size range of which is 0.1-2mm;
[0045] The second step is to select polyurethane sponge and ...
Embodiment 3
[0050] A park in Shanghai adopts the invention to construct an anti-clogging soil trench sewage treatment system.
[0051] This embodiment includes the following steps:
[0052] The first step is to select soil, sand, iron filings and bran, and mix ingredients according to the soil permeability coefficient, wherein the volume ratios of soil, sand, iron filings and bran are 57%, 36%, 4% and 3% in sequence. Soil, sand, iron filings and bran are stirred and mixed by a stirring device to make a silt mixture.
[0053] The soil mentioned is taken from the soil near a park in Shanghai, and its permeability coefficient is 7.7×10 -6 cm / s;
[0054] Described sand is natural river sand, and its particle size range is 1-2mm;
[0055] The iron filings are cast iron filings with a particle size range of 0.1-10mm;
[0056] The bran refers to cereal bran, the particle size range of which is 0.1-2mm;
[0057] The second step is to select polyurethane sponge and use a sponge crusher to cru...
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Abstract
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