Composite microbial inoculant for treating coal chemical industry sewage and application thereof
A compound bacterial agent and coal chemical technology, applied in the field of microorganisms, can solve the problems such as hindering the application process of biological treatment of sewage, unreasonable compatibility of bacterial agents, and unacceptable enterprises, so as to improve the efficiency of biological oxidation, improve the efficiency of biological treatment, and easily accepted effect
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Embodiment 1
[0028] A composite bacterial agent for treating coal chemical wastewater, which is prepared according to the following method:
[0029] Step 1) Preparation of auxiliary materials: firstly pulverize the zeolite to obtain zeolite powder with a particle size of 50 mesh, and then mix it with humic acid in a weight ratio of 1:2 to obtain; the particle size of the humic acid is 50 mesh;
[0030] Step 2) Prepare a paste liquid: dry the corn stalks and crush them into corn stalk powder with a crusher; dry the peanut shells and crush them into peanut shell powder with a crusher; add the corn stalk powder and peanut shell powder to the mixing Then add soybean meal and water to the tank, stir for 15 minutes at 500 rpm, send the materials in the stirred tank into the reactor, and pour water vapor into the reactor to maintain the temperature of the reactor at 100°C and keep warm React for 30 minutes and cool naturally to obtain a paste liquid; the mass ratio of corn stover powder, peanut hull p...
Embodiment 2
[0036] A composite bacterial agent for treating coal chemical wastewater, which is prepared according to the following method:
[0037] Step 1) Preparation of auxiliary materials: firstly pulverize the zeolite to obtain zeolite powder with a particle size of 100 mesh, and then mix it with humic acid in a weight ratio of 1:2 to obtain; the particle size of the humic acid is 100 mesh;
[0038] Step 2) Prepare a paste liquid: dry the corn stalks and crush them into corn stalk powder with a crusher; dry the peanut shells and crush them into peanut shell powder with a crusher; add the corn stalk powder and peanut shell powder to the mixing Then add soybean meal and water to the tank, stir for 15 minutes at 500 rpm, send the materials in the stirred tank into the reactor, and pour water vapor into the reactor to maintain the temperature of the reactor at 100°C and keep warm React for 30 minutes and cool naturally to obtain a paste liquid; the mass ratio of corn stover powder, peanut hull...
Embodiment 3
[0051] Take the coal chemical wastewater of a certain company in this city as an example. First, remove the suspended solids and petroleum substances in the wastewater, then add hydrochloric acid to adjust the pH of the wastewater to 7, and add the composite bacteria prepared in Example 2 every time per cubic meter of liquid. 20 grams of agent, dosing once a day, after three consecutive days of dosing, let it stand for another week, filter and sterilize the liquid, and finally discharge. Three water samples were taken for each test, and the average value was calculated; after the test, each index reached the ideal discharge standard. The test index of sewage is shown in Table 1:
[0052] Table 1
[0053]
[0054] Conclusion: The composite bacterial agent of the present invention can effectively remove ammonia nitrogen, sulfide and aniline substances in coal chemical wastewater, has a good removal effect, reaches the emission standard, and can be popularized and used.
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Abstract
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