Dissertation > Excellent graduate degree dissertation topics show

Pilot Study on Micro-Flocuulation Filtration Technology Applization in Advanced Wastewater Treatment

Author: ZhengFuLing
Tutor: ZhangJinSong
School: Guangzhou University
Course: Municipal Engineering
Keywords: Wastewater treatment Microflocculation filtering Process parameters Pilot Study
CLC: X703
Type: Master's thesis
Year: 2009
Downloads: 122
Quote: 1
Read: Download Dissertation

Abstract


As countries accelerate the transformation of the city sewage treatment plant with standard micro-flocculation filtration process as a new wastewater treatment process one of considerable progress in our research and application, but the process also exists the design process parameter differences actual operating experience shortage problem. A wastewater treatment plant in Shenzhen (Company A) has been determined using the micro-flocculation filtration process as a wastewater treatment process, from the application point of view, the validation process of treatment effect, optimize operating parameters, it is particularly important. In this paper, the pilot test to validate and optimize the plant design parameters, and the results showed that: studies have shown that the overall effect of the running of the plant design parameters feasible, turbidity, COD, BOD 5 SS TP removal of a significant effect of TN and NH 4 -N removal effect is very limited; study also showed that the secondary effluent run mud easily result in effluent SS TP substandard and filter head loss rapid increase occurred. Therefore, the use of micro-flocculation filtration process as the depth of the treatment process, secondary biological treatment unit must not only have a high denitrification performance also need to strengthen management to run mud minimize phenomenon occurred. Using micro-flocculation filtration as the depth of the process, it is recommended that the secondary effluent water quality control: Turbidity ≤ 100 NTU or, SS ≤ the 120mg / COD ≤ 100mg / L, BOD 5 ≤ 20mg / L, TN ≤ 15mg / L, NH 4 -N ≤ 6mg / L, TP ≤ 1.5mg / L. The design process parameters factors to remove the effect of different indicators there are some differences, considering phosphorus removal as the control target, the order of the significant impact of phosphorus removal effect: the filter size filter layer thickness filtration speed> Mixed time> PAC dosage; optimization of process parameters: the particle size 1.35mm, filter thickness of 1.50m, the filtration rate 9m / h, mixing time 10s, PAC dosage of 3 mg / L,. The Testing Research shows that optimize the parameters of the treatment effect is superior to the design parameters, run abnormal secondary treatment significantly enhanced anti-shock loading capability of running mud situation, while increasing water production rate, saving the dosage. Backwash sludge the water solubility TN, TP lower, the supernatant directly back into the secondary settling tank, does not produce secondary sedimentation effluent nitrogen and phosphorus impact load. In the actual production should be dynamically adjusted based on the filter head loss hair rinse cycle, and can effectively prevent compaction of filter backwash strength and reasonable control. The pilot study showed that, in the secondary effluent denitrification better circumstances, micro-flocculation filtration process unit operating costs of about 0.069 yuan / m 3 , the water can be stabilized GB18918-2002 class A emissions standard; optimization of process parameters obtained for the pilot has yet to be verified and corrected in the actual production in order to obtain the desired depth of treatment effect.

Related Dissertations

  1. Studies on the Synthesis and Technology of Dipentaerythritol and Its Derivative,TQ223.164
  2. Selection and Optimization of Control Technics in CODCr and Colority of the Refined Cotton Wastewater Treatment Process in a Refined Cotton Enterprise in Rudong, Jiangsu Province,X791
  3. Experimental Study of Improved UASB Reactor Treatment of Organic Wastewater,X703
  4. Optimization Study on Gating System and Molding Process Parameters of Injection Mold Based on Simulation,TQ320.662
  5. Design of the pH Control System for the Wastewater Treatment Based on STM32 Micro-Controller,TP273
  6. Study on Fiber Laser Welding of Aluminum Alloy with Filler Wire,TG456.7
  7. Efficient oil -degrading bacterium build and Effects,X703
  8. Based on virtual manufacturing sheet metal forming simulation technology,TP391.9
  9. Study on the Refractory and Toxic Wastewater with Microbial Fuel Cell,X703
  10. Research on the Process Optimization of the Jinan Second Wastewater Treatment Plant by Using Activated Sludge Mathematical Model,X703
  11. Research on Micro Machining Technology of Ultraviolet Laser,TG665
  12. Micro-morphology and Formability of Stainless Steel Components Produced by Selective Laser Melting,TG665
  13. Research on Assessment Technology for Water Pollution Control in Pharmaceutical Industry,TQ460.9
  14. Zhuzhou City Sewage Treatment Plant Design He×i,X703
  15. Behaviour of Nonylphenol Ethoxylates in A Sewage Treatment Plant,X703
  16. Influencing Factors of Microalgal Culturing in Helotism Wastewater Treatment System,X703
  17. The Technology Research of Sewage Water Treatment in the Xianhezhuang Oil Field,X703
  18. Silicon Aluminum and Iron Strengthened Leaching from Fly Ash and Synthesis of Poly-Aluminum Ferric Silicate Sulfate,X703.5
  19. Selective laser melting steel forming quality influencing factors,TF124.39
  20. Study on CNTs Irradiation Grafting PBO Fiber and Composite Interfacial Properties,TB332
  21. Studies on Fermentation Technology of Porcine Lactoferrin Gene-engineering Strain,S816.7

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