Study On The Reclamation And Treatment Of The Waste From Diosgenin Production Of Dioscorea Zingiberensis C.H.Wright

Currently ,the waste from Diosgenin production of Dioscorea Zingib erensis C.H.Wright has brought serious pollution to surroundings environment currently, which has become the bottleneck for the further development of diosgenin plain industry develops healthily. Because of the difficulties in dealing with diosgenin wastewater and high expenses, there was no mature technology of treating the wastewater yet. In this thesis, the technology of comprehensive utilization and treatment of the waste was studied to make it reclaimed and reduce pollution. Meanwhile, the technology of production Bio-organic fertilizer by Diosgenin waste was also researched.Objectives: Resolve output high density organic wastewater in the Diosgenin production line and waste residue of comprehensive utilization a problem, make wastes recycling, change to discard for the treasure, attain to pass to synthesize a performance of making use of the wastes creation, maintain the Diosgenin production to manage pollution invest with circulate of expenses, even can produce the target of economic performance certainly. Methods: Make use of the organic matter content in the Diosgenin wastewater tallest, pollute a most heavy wastewater to ferment to produce industrial alcohol and exploitation to match the method processing waste water of photosynthetic bacteria and activated sludge to combine together only of the method manage Diosgenin production wastewater; Adopting the microorganism ferments the waste residue of Diosgenin production making Bio-organic ferti lizer. Results: 1.Make use of the first wastewater of Diosgenin product on after alcohol fermenting, gain industrial alcohol a section to examine through the quality check, basic match industrial lcohol national standard GB394 - 93, can produce a good economic performance, attain to keep by discarding to discar of purpose. In the meantime, use photosynthetic bacteria solution comprehensive wastewater, the activated sludge method again processing after, the COD_Cr cleans rate about 98.7%, the color degree cleans rate about 94%, the fluid matter gets obvious improvement, basic attain nation of dirty water comprehensive exhaust 3-rated standard, hurdle a problem in wastewater from Diosgenin production. 2. The research obtained in a use the waste residue of Diosgenin production, after certain proportion cellulose-decomposing bacterium, Azotobacter chooroccum, Phosphorus-dissolvin g bacterium, Potassium bacterium ferment a function, making the Bio-organic fertilizer craft route. Various parameters of product all match Department of Agriculture Bio-organic fertilizer standard NY 884-2004. Manages 50T waste residue, the production cost is about 20,000 yun, can make a profit 10,000 yun . There is certain economic performance, since reduced a waste of resources, and then lowered pollution of the environment. Conclusions: By means of the reclamation and treatment of the waste from diosgenin production of Dioscorea Zingiberensis C.H.Wright, not only the wastewater pollution to environment could be reduced, but also the aim at balancing the cost of Diosgenin wastewater further treatment and even at gaining economic profit could be achieved. In addition, it was easy for most of Diosgenin factories of small scale to accept be cause of its simpleness and feasibility. Making Bio-organic fertilizer since reduced a waste of resources, and then lowered pollution of the environment。Both of the technology routes had obvious economic and social benefits.