Dissertation > Excellent graduate degree dissertation topics show

Study on the Screening and Properties of Degradation Coking Waste Water Advantage Strains

Author: HuangFuShang
Tutor: CaiChangFeng
School: Anhui University of Engineering
Course: Microorganism
Keywords: coked waste water degradation rate the advantage bacterium strains of screening the growth curve plasma UV mutagenesis
CLC: X172
Type: Master's thesis
Year: 2011
Downloads: 11
Quote: 0
Read: Download Dissertation


The coking wastewater complicated composition, which contains a lot of poisonous and harmful substances, using conventional biological treatment, effluent standards can, using physical or chemical processing, the high cost of treatment. In the existing of coking wastewater treatment technology, the use of the biological technology advantage bacterium, has strengthened its unique function.From masteel coking wastewater treatment of wastewater sludge in the second pond near and two strains of the soil sample screening (W1, W2, W3, W4, W5,N1, N2, N3,N4, Z1, Z2, Z3, Z4) expanding, After the training, through the comparison of the expanding in different concentrations of strains of coking wastewater medium, good adaptability of screening W3, strains (N3, W5, W4, N4, Z3), medium step by step in the ratio of coking wastewater inoculating culture. The strain on acclimated to the determination of degradation rate of coke plant wastewater in high rate of degradation of selected strains (W4,W3, N3, Z3), after the strains were screened were isolated (W4×10-4, W4×10-5, W4×10-6, Z3×10-4, Z3×10-5, Z3×10-6), measuring device on the degradation rate of coking wastewater, were selected from two strains (W4×10-6, Z3×10-6), the growth characteristics of the predominant bacteria in preliminary experimental study. After screening results show that the dominant bacteria in the W4×10-6, Z3×10-6strains on the maximum degradation rate of organic matter. Experiments at different temperatures were measured, pH, dosage on removal of organic species obtained W4×10-6 strain in 35℃, pH 9, the dosage of the growth in the 1:33 case best, reached Z3×10-6 strai in 35℃, pH 9, the dosage of the growth in the case of the best of 1:50. Determination the growth curve in the best condition,and reserch the growth characteristics of effective strains.Experimental results shows that,in different conditions the different strains of the degradition rate of COD are different.Through screening efficient strains and adjusting the best environment factor,the degradition rate of COD can effectively improve.Carries on the plasma mutagenesis the superiority fungus,and UV mutagenesis,investigation physical mutagenesis to the fungus degeneration high potency coking waste water COD ability influence. Studies the best mutafacient condition, screens the highly effective fungus and carries on the comparison with the original fungus.Plasma mutagenesis can generate positive mutation, degradation ability of coking wastewater of high concentrations of coking wastewater advantage bacterium is inproved.This method has great help to the reserch of the advantage bacterium with high concentrations and organic coking wastewater.The bacterium to UV mutagenesis, using the optimized experiments and orthogonal test, height and time in different strains of the COD removal rate. Determining the advantage of coking wastewater by bacteria in the UV-induced degradation under certain rate.The most effectivly influence is trradiation time,then the different bacterium and the distance.The optimum conditions is W4 in 10~20cm high, the mutation 20s,the degredaton rate increased to 59.74%; Z3 in 10~20cm high, the mutation 20s, the degredaton rate increased to 22.27%.This method is instability at improve the degraation rate.The results show that different strains, different conditions of the degradation rate of COD, different strains and adjust the efficiency of environmental factors, can effectively improve the COD removal.The plasma can produce positive mutation induced increase of coking wastewater superior bacteria for the degradation of coking wastewater capacity for the study of coking wastewater with high concentrations of organic bacterium of great help.Based on the advantage of coking wastewater treatment of bacteria in screening and physiological characteristics, the study of coking wastewater treatment strains of bacteria and the advantages of the optimal grow condition.

Related Dissertations

  1. Preparation and Tribological Properties of TZ3Y20A-SrSO4 Ceramic Matrix Composites,TB332
  2. Experimental Investigation and Mechanism Exploration on the Degradation of N-heterocyclic Compounds with Dielectric Barrier Discharge,X703
  3. Optical Spectrum Diagnose of Stationary Plasma Thruster Channel Wall Sputtering Erosion,V433.9
  4. Study on LC Resonance Charge and POS Based Pulsed Power Supply,TN782
  5. Research on the Methods of Nasopharyngeal and Gastric Cancer Detection Based on Surface-enhanced Raman Spectroscopy,R739.63
  6. Study of Nitrobenzene Wastewater’s Treatment by Combination of Immobile Phanerochaete Chrysosporium and Activated Sludge,X703
  7. Study on the Breeding of High Efficient Detoxification Strains and Suggestion Parameters of Solid Fermentation on Cottonseed Meal,S816.6
  8. The Research of Microsatellite Markers and the Eatablishment of Growth and Development Model in Xianan Cattle and Pinan Cattle,S823
  9. The Application of Eggshell Membrane for Solid-phase Extraction and the Determination of Trace Metal Elements in Environment Water,X832
  10. Study on Separation、 Preconcentration and Analysis of Trace Elements with Carbon Nanometer Materials,TB383.1
  11. Research on PSA/Cotton Blend Fabric of Coatinging of Water Resistance and Moisture Permeability,TS195.6
  12. Preparation and Property Study of Polyaniline/Polyester Composite Conductive Fabric,TS195.6
  13. Study on Processing Functionalities and Application of Bovine Plasma Proteins,TS251.1
  14. Proteomic Research of Rice Plasma Membrane Protein under Blast Stress,S511
  15. Study on Ca2+/H+ Antiporter Avtivity and Its Gene Expression of Apple,S661.1
  16. Study on the Anesthestic Quality, Blood Concentration and Clinical Application of Shumianning Administered Intravenously by Continuous Rate Infusion Using Microinjection Pump in Dogs,R965
  17. Study on Effect of Recombination on Functionalities of Salt-Soluble Proteins from Pork,TS251.1
  18. GC-MS Analysis of Endogenous Metabolites in Plasma of Police Dog after Aflatoxicosis,S858.292
  19. Pharmacokinetics of Progesterone Cream in Beagle Dogs Determined with LC-MS/MS,R96
  20. Microdialysis Combine with Hollow Semipermeable Membrane Microextraction,R917

CLC: > Environmental science, safety science > The basic theory for the Environment and Science > Environmental Biology > Environmental Microbiology
© 2012 www.DissertationTopic.Net  Mobile