Dissertation > Excellent graduate degree dissertation topics show

Study on Algae Removal Technique Source Water by Ultrafiltration Process

Author: ZhaoHu
Tutor: LiXing
School: Beijing University of Technology
Course: Municipal Engineering
Keywords: ultrafiltration membrane algae chemical medicine Transmembrane pressure ultrafiltration membrane flux
CLC: TU991.2
Type: Master's thesis
Year: 2008
Downloads: 278
Quote: 4
Read: Download Dissertation

Abstract


The algae propragating quickly is a great damage to drinking water quality, besides microcyst algae and the chlorella are the chief pollutant, so how to to remove the algae and the algae toxin efficiently attractes a lot of attention. In recently, the ultrafiltration turns to be the leading technology and technics because of it’s less ground occupying、little pressure、less energy consume and favourable water quality.Ultrafiltration membrane (UF) with Jar-tests and pilot-scale process was used to treat the algae water with PVC hollow fiber UF as the key technology. And UF’s working conditions and the algae removal effect varying from technics was investigated when dealing with algae water.The Jar-tests results showed that the removal of bacterium, algae, turbidity was remarkable, especially the bacterium and algae removal rate is close to 100%, and turbidity removal rate is 99%. In the period of Dead-end filtration, severl kinds of medicine were put into the water to make certain the best medicine combination, which is aluminium sulphate+potassium permanganate composites+power activated carbon, with 30% dropping of ultrafiltration membrane flux and a better water quality; In cross flow filtration, the best medicine combination is only using Al2(SO4)3, whose dropping of ultrafiltration membrane flux is 37.7%, and at that time the organic matter contents were all high.The pilot-scale results showed that when the raw water mixed with the coagulant and oxidant was pumped to UF, not only transmembrane pressure but also the water quality is better than the water that comes from UF filtrating the settled water. Besides, transmembrane pressure goes rapidly by directed UF; the effct using three medicine in raw water is better than the effect using either medicine by UF, The UF on-line coupling aggrandized flocculate, the increasing speed is lower than the speed which has a little long coagulant time.

Related Dissertations

  1. Isolation and Identification of One Algae-Lysing Bacteria and the Lytic Effects on Two Blue-Green Algae in Prawn Pond,S942.91
  2. Study on the Secondary Metabolites of Two Fungi from the South China Sea,R284
  3. Preparation of Polysulfonate Ultrafiltration Membrane and Application on Oil Decolorization,TQ320.721
  4. The Influence of Adding Oxygen with Microporous Pipeline on Fishery’s Water,S959
  5. Interfacial polymerization preparation of small aperture composite ultrafiltration membrane and its performance,TB383.2
  6. Application of Microalgal DHA in Several Baking Products,TS202.3
  7. Grass -type lakes with algae -type lake carp, bighead carp and bighead carp fish potential of muscle quality,S931.1
  8. Distributing Characteristics of Microcystins and Regression Model of Cytotoxicity/Genotoxicity on Pollution-Spectrum with Huai River Water Organic Extract from X County,R114
  9. The Application of Multivariate Analysis and Excitation-Emission Matrix Fluorescence Spectroscopy of Dissolved Organic Matter in the Identification of Red Tide Algae,X55
  10. Sequencing and Analysis the Whole Genome of the Arthrospira Platensis AGB-AP02,Q943.2
  11. Cloning and Sequence Analysis of Hox1 and PcyA Gene from Cyanobacteria and Construction of Expression Vector,Q943.2
  12. Dynamics of Fatty Acids in Common Red-Tide Algaes in the Jiaozhou Bay and Its Application,X173
  13. Based on Coupling Model ELCOM-CAEDYM nutrient regulation of Dianshanhu,X832
  14. The Mechanism Study on the Effect of Additives on the Structure of Reverse Osmosis Support Membrane,TB383.2
  15. Study on Preparation Oface Inhibitory Peptides and Antioxidative Peptides from Oat Protein by Enzymatic Membrane Reactor,TQ464.7
  16. The Experimental Study of Surface Modification for PVDF Ultrafiltration Membranes and for Treating Micro-pollutedsurface Water,TU991.24
  17. Control System Analysis and Control of Dissolved Air Flotation in Water Treatment,TU991.2
  18. Screening of Elite Strains of Haematococcus Pluvialis and Its Physiological Characteristics,S968.439
  19. Biological Effections of Several Physical and Chemical Factors on the Dominant Microalages in the Eel Pond,S917.3
  20. Growth of Soil Algae on Different Substrates-An Ecosystem Approach to Soil Crusts,S154
  21. Studies on the Isolation, Identification, and Antitumor Bioactivities of Fucoxanthin in Algae,R285

CLC: > Industrial Technology > Building Science > Municipal Engineering > Water supply project ( on the Water Works ) > Clean Water ( water treatment )
© 2012 www.DissertationTopic.Net  Mobile