Dissertation > Excellent graduate degree dissertation topics show

Release and Control of Hydrogen Sulfide in Sewage Sludge

Author: GaoCaiXia
Tutor: WengHuanXin
School: Zhejiang University
Course: Environmental Science
Keywords: Sludge hydrogen sulfide SRB copper-iron absorption
CLC: X703
Type: Master's thesis
Year: 2008
Downloads: 271
Quote: 0
Read: Download Dissertation

Abstract


During the treatment and disposal process of sludge,there is inevitably a number of different kinds of odour gases released.There are eight odours in GB14554-93: hydrogen sulfide,methyl mercaptan,a sulfide,dimethyl disulfide,carbon disulfide, ammonia,trimethylamine and styrene.The odour from sludge contains almost all of the above pollutants,five of them are sulphur compounds.Sludge contains a lot of microorganisms,and because hydrogen sulfide is the end-product of microbial action, so hydrogen sulfide released from different sludges’ is mainly studied.Hydrogen sulfide is related to microorganisms(mainly sulfate-reducing bacteria) in sludge.Beginning with the release mechanism of hydrogen sulfide,three areas were studied.First of all,the characteristic of sludge related to sulfate-reducing bacteria is researched in order to estimate whether there is a preliminary environment for sulfate-reducing bacteria.Secondly,on the base of sufficient evidence of sulfate-reducing bacteria’s entity,a farther investigate which cultivating sulfate-reducing bacteria of sludge is done and a preliminary exploration of ultrasonic on sulfate-reducing bacteria is conducted.Finally hydrogen sulfide form sludge is absorbed by copper-iron absorption,and the relationship between sulfate-reducing bacteria and hydrogen sulfide is explored.Four sludges,Hefei municipal sludge, Sibao municipal sludge,dyeing sludge and leather sludge are researched.The major results were summarized as follows:1.There is a environment for sulfate-reducing bacteria to grow and reproduce.2.Sludge possess the substance to satisfy the growth of sulfate-reducing bacteria;The entity of sulfate-reducing bacteria in sludge is confirmed,the growth of sulfate-reducing bacteria in sludge is different by various preservation;Ultrasonic with same frequency effect on sludges,sulfate-reducing bacteria in Sibao municipal sludge and leather sludge is deactived,while Hefei and dyeing sludge’s is still in active.3.The quantity of hydrogen sulfide released from Hefei municipal sludge and Sibao municipal sludge are 1000 times more than dyeing sludge and leather sludge.The process that hydrogen sulfide released from Sludge can be divided into four stages. The more SRB in sludge the more hydrogen sulfide emission is detected.Copper-iron absorption rate of hydrogen sulfide with high concentrations is all close to 100 percents,while low concentration is relate to the concentration of hydrogen sulfide; Hydrogen sulfide emission from Sibao municipal sludge,dyeing sludge and leather sludge,which via copper-iron absorption can reach first-degree of factory sector standards.Hefei municipal sludge’s can meet the second-degree standard.

Related Dissertations

  1. Lightweight Aggregate Made from Waste Residue of Construction、Reclamation of Waste Foundry Sand Dust and Sludge,TU528.042
  2. Study on Fusion Characteristic and Mineral Change of Blends of Sludge and Coal,X703
  3. Study of the Treatment of Printing and Dyeing Wastewater Using a Pilot-scale Combined Process of Multi-stage Anaerobic Phases and Cross Flow Aerobic Sludge Reactor,X791
  4. Anti-corrosion Property of Flake Zinc Epoxy Coating Doped with Rare Earth in SRB,TQ630.1
  5. Study on Bio-drying of Paper Mill Sludge,X793
  6. Experimental Study of Improved UASB Reactor Treatment of Organic Wastewater,X703
  7. A Study on Removal Characteristics and Kinetics Model for Denitrification of AAO Technology,X703
  8. The protective effect of the new gaseous signal molecule of non-steroidal anti-inflammatory drug -induced gastric lesions,R96
  9. Changes and Roles of Plasma Hydrogen Sulfide in Elderly Patients with Ischemic Heart Failure,R541.6
  10. The Role and Mechanism of Hippocampus H2S/CBS Systemon Epilepsy Production,R742.1
  11. Hydrogen-producing bacteria in activated sludge screening and hydrogen production research,X172
  12. Heavy metal ions on aerobic activated sludge activity impact study,X703.1
  13. The Study of Treating Blend Electroplating Wastewater by the Technology of Immobilized SRB Sludge,X703
  14. Research on Important Microbal Population and Corresponding Functional Genes in Industrial Anaerobic Granular Sludge,X703
  15. Study on the Application of Anaerobic Granular Sludge to Antibiotic Wastewater with High Concentration Treatment,X703
  16. Research on Augmentation of Sludge Internal Carbon Release and Removal of Nitrogen and Phosphorus in Hydrolysate,X703
  17. Study on New Aerobic Reactor with Sludge Filtering,X703.1
  18. Research Sulphate Control in Anaerobic Biotreatment Penicillin Wastewater,X703
  19. Fabrication of Ag~+ Doping Titania Film on 304 Stainless Steel Substrates and Anti-corrosion Properties Research,TG174.4
  20. Synchronously Remove Sulphate, Nitrogen and Phosphorus with Microbial Screening Test and Experimentalize of Treatment of Mine Drainage,X703
  21. Immobilized surplus activated sludge wastewater treatment of copper applied basic research,X703

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
© 2012 www.DissertationTopic.Net  Mobile