Garbage treatment method
A garbage disposal and garbage technology, applied in chemical instruments and methods, solid waste removal, transportation and packaging, etc., can solve problems such as harming the environment, and achieve the effects of wide range of action, good deodorization effect and long action time.
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Embodiment 1
[0050] In a landfill, 1m 3 The garbage body is the research object, and the conditions are as follows: ambient temperature 15-20°C, garbage body weight 550±50kg, moisture content 60.9%, sulfur content 50ppm. Mix 13.6±0.3g-VSS sulfur autotrophic denitrifying bacteria with an average particle size of 214μm and 30L of nitrosifying liquid with a nitrogen content of 50mg / L to obtain a mixed solution. At this time, the sulfur autotrophic denitrifying bacteria in the mixed solution The mass ratio of the sulfur element in the garbage to the sulfur element in the garbage is 12.5:1, and the mass ratio of the sulfur element in the garbage to the nitrogen element in the nitrogen-containing liquid is 0.77:1. Chemical spraying on the garbage body, followed by film covering. After 14 days, measure and calculate H 2 S removal rate reaches 90%.
Embodiment 2
[0052] Under laboratory conditions, set up a closed reactor, add 5±0.3kg of garbage into the reactor, and spray 1L of nitrite solution with a nitrogen content of 150mg / L and 0.97g-VSS sulfur on the garbage Autotrophic denitrifying bacteria, the initial hydrogen sulfide concentration in the reactor is 50 ± 5ppm, at this time, the mass ratio of sulfur autotrophic denitrifying bacteria in the mixed solution to the sulfur element in the garbage is 15:1, and the sulfur element in the garbage and the sulfur element in the garbage The mass ratio of nitrogen in the nitrogen-containing liquid is 1.6:1, and the temperature in the reactor is 25±3°C. In the first 14 days, the average removal rate of hydrogen sulfide reached 93%. At 14 days, the ORP of the effluent from the reactor was -96mV, indicating that the growth of sulfate-reducing bacteria can be effectively inhibited by increasing the oxidation-reduction potential.
[0053] After 14 days, the anaerobic equilibrium was established...
Embodiment 3
[0056] Under laboratory conditions, set up a closed reactor, add 5±0.3kg of garbage into the reactor, and spray 1L of nitrite solution with a nitrogen content of 90mg / L and 0.97g-VSS sulfur on the garbage Autotrophic denitrifying bacteria, the initial hydrogen sulfide concentration in the reactor is 50 ± 5ppm, at this time, the mass ratio of sulfur autotrophic denitrifying bacteria in the mixed solution to the sulfur element in the garbage is 15:1, and the sulfur element in the garbage and the sulfur element in the garbage The mass ratio of nitrogen in the nitrogen-containing liquid is 1:1, and the temperature in the reactor is 25±3°C. In the first 14 days, the average removal rate of hydrogen sulfide reached 91%. At 14 days, the ORP of the effluent from the reactor was -115mV, indicating that the growth of sulfate-reducing bacteria can be effectively inhibited by increasing the oxidation-reduction potential.
[0057] After 14 days, the anaerobic equilibrium was established i...
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