Process for treating and controlling waste water containing high concentration hazard rubbish chromium by high efficient function bacteria
A technology of composite functional bacteria and hazardous waste, applied in the direction of chemical instruments and methods, bacteria, water pollutants, etc., can solve problems such as high-concentration complex hazardous waste, and achieve harmless resource utilization, low operating costs, and structural small effect
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Embodiment 1
[0037] In this example, the composite functional bacteria are composed of Desulfovibriodesulfuricans Sp., Desulfovibrio LD2 (Desulforibrio Sp.) and Desulfotomaculum Sp., and the composition ratio of the strains is 60:20 : 5; the composite functional bacteria are grown for 40 hours under anaerobic conditions with nutrients at pH6.5 and 20°C in the incubator for use. Treat a factory 5m per hour according to the process of attached drawing 1 3 Waste liquid, pH9 of waste liquid, Cr 6+ (hexavalent chromium) 2.0mg / L, total chromium 92.0mg / L, Ni 2+ 15.7mg / L and Cu 2+ 25.0mg / L and contains wastes such as surfactants, additives, brighteners, etc. After the waste liquid is mixed with composite functional bacteria, it enters the bioreactor to stir and react for 5 minutes, and then is filtered through a filter to separate the filtered sludge and discharge water , monitored by the environmental monitoring station: in the discharged water: Cr 6+ 0.06mg / L, total chromium 0.40mg / L, Ni ...
Embodiment 2
[0039] In this example, the composite functional bacteria are composed of Desulfovibrio desulfuricans Sp., Desulfovibrio LD2 (Desulforibrio Sp.) and Desulfotomaculum Sp., and the composition ratio of the strains is 15:35 : 55; the composite functional bacteria are grown in an incubator for 10 hours with nutrients at pH 8.5, 44° C., and anaerobic conditions. The nutrient is a conventionally used nutrient such as Desulfovibrio, and the nutrient contains C, N, P, S, Fe and other components. According to the process in Figure 1, 1m per hour is processed 3 The pH of a factory is 1, Cr 6+ Concentration of 6800mg / L, total chromium concentration of 6850mg / L high-concentration hazardous waste chromium waste liquid, after mixing the waste liquid with composite functional bacteria, enter the bioreactor to stir and react for 30 minutes, and then filter through the filter to separate the filtered sewage Mud and discharge water were randomly sampled and monitored by the environmental moni...
Embodiment 3
[0041] The composite functional bacteria used in a hazardous waste workshop is composed of Desulfovibrio desulfuricans Sp., Desulforibrio LD2 (Desulforibrio Sp.) and Desulfotomaculum Sp. : 20: 28; the composite functional bacteria are grown with nutrients at pH 7, 35°C, and anaerobic conditions for 20 hours. According to the process of accompanying drawing 1, the workshop is 15m per hour 3 Waste liquid, the pH of the waste liquid is 3, Cr 6+ 2000mg / L, total chromium 101.8-1200mg / L, Ni 2+ 6.44mg / L and Cu 2+ 443.4mg / L and containing complexing agent, etc., after mixing the waste liquid with composite functional bacteria, enter the bioreactor to stir and react for 10 minutes, and then filter through the filter to separate the filtered sludge and discharge water, which are randomized by the environmental monitoring station Sampling and monitoring: Cr in discharged water 6+ 0.01mg / L, total chromium 0.42mg / L, Ni 2+ 0.09mg / L, Cu 2+ 0.12mg / L, pH7.5. pH, Cr of discharge wat...
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