A kind of treatment method of electroplating wastewater
A technology for electroplating wastewater and treatment methods, which is applied in metallurgical wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Pollution and other problems, to achieve the effect of convenient operation and management, remarkable removal effect and low investment cost
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example 1
[0020] First take the river silt, dry it at 100°C until the humidity of the silt is 8%, then leave it to cool to room temperature, and make it layer up and down, then remove the 3cm thick silt in the upper layer to get the lower layer silt; put the lower layer silt obtained above Put it into a pulverizer for pulverization. After the pulverization is completed, add a potassium hydroxide solution with a concentration of 0.8mol / L in an amount of 20L / Kg. Under room temperature, vibrate for 1h, let it stand for precipitation, and separate the humic substance turbid liquid; then The humus turbid liquid that above-mentioned processing obtains is put into digester, by weight, adds 20 parts of dead leaves, 30 parts of branches and 50 parts of weeds, feeds reflux steam simultaneously in digester, controls in digester The temperature is 50°C, and it is sealed and fermented for 1 month. After it has completely rotted into a slurry, take it out and air-dry it in a ventilated state; then soa...
example 2
[0023]First get the river silt, dry it at 103°C until the silt humidity is 9%, then leave it to cool to room temperature, and make it layer up and down, then remove the 4cm thick silt in the upper layer to get the lower layer silt; put the lower layer silt obtained above Put it into a pulverizer for pulverization. After the pulverization is completed, add a potassium hydroxide solution with a concentration of 0.8mol / L, and the addition amount is 22L / Kg. Under room temperature, shake for 1h, let it stand for precipitation, and separate the humic substance turbid liquid; then The humus turbid liquid that above-mentioned treatment obtains is put into digester, by weight, add 35 parts of dead leaves, 25 parts of branches and 40 parts of weeds, feed backflow steam simultaneously in digester, control the The temperature is 55°C, and it is sealed and fermented for 2 months. After it has completely rotted into a muddy state, take it out and air-dry it in a ventilated state; then soak t...
example 3
[0026] First take the river silt, dry it at 105°C until the humidity of the silt is 10%, then leave it to cool to room temperature, and make it layer up and down, then remove the 5cm thick silt in the upper layer to get the lower layer silt; put the lower layer silt obtained above Put it into a pulverizer for pulverization. After the pulverization is completed, add a potassium hydroxide solution with a concentration of 0.8 mol / L in an amount of 25 L / Kg. Under room temperature, vibrate for 1 hour, let it stand for precipitation, and separate the humic substance turbid liquid; then The humus turbid liquid that above-mentioned treatment obtains is put into digester, by weight, add 45 parts of dead leaves, 30 parts of branches and 25 parts of weeds, feed backflow steam simultaneously in digester, control the The temperature is 60°C, and it is sealed and fermented for 2 months. After it has completely rotted into a muddy state, take it out and air-dry it in a ventilated state; then ...
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Abstract
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