Browsing by Author Le, Duc Manh

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  • Authors: Le, Duc Manh (2008)

  • Vegetable oil and grease polluted wastewater caused many problems in wastewater plan such as physical blockages in sewer, pump, screens and filter distributor arms. Its occurrence in effluent increase COD significantly even its amount is not high. In this paper, bioremediation was investigated to remove vegetable oil and grease. Four strains were positive with lipid degrading test. Cell morphology and optimal conditions such as pH, temperature anf lipid concentration was found. The lipid-degrading activity of A12, B13 and D15 was highest at 30oC and pH 7 while that of D14 is at 34o C and pH 7.5 . The result also showed that the highest lipase production of strains A12, B13 and D14 ...

  • TC_02498.pdf.jpg
  • Article


  • Authors: Le, Duc Manh (2009)

  • Wastewater from food processing enterprises is a strong organic-polluted wastewater. It contains mostly organic compounds, which fits to be treated by using biotechnology. The best technology for treatment is anaerobic. Deodorization is one of the most important points of this technology since anaerobic process generated some odor compounds. The main reason which causes bad smell in wastewater was a present of compounds which contains N and S. In this paper we report the result of deodorization by using several oxidant agents. The deodorization was taken after anaerobic process. The result shown that at pH 7-8.5, 4 gram/l of CaO or 120 milligram/l of CaOCl2, 2.4 milligram/l of KMnO4...

Browsing by Author Le, Duc Manh

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 3 of 3
  • TC_02462.pdf.jpg
  • Article


  • Authors: Le, Duc Manh (2008)

  • Vegetable oil and grease polluted wastewater caused many problems in wastewater plan such as physical blockages in sewer, pump, screens and filter distributor arms. Its occurrence in effluent increase COD significantly even its amount is not high. In this paper, bioremediation was investigated to remove vegetable oil and grease. Four strains were positive with lipid degrading test. Cell morphology and optimal conditions such as pH, temperature anf lipid concentration was found. The lipid-degrading activity of A12, B13 and D15 was highest at 30oC and pH 7 while that of D14 is at 34o C and pH 7.5 . The result also showed that the highest lipase production of strains A12, B13 and D14 ...

  • TC_02498.pdf.jpg
  • Article


  • Authors: Le, Duc Manh (2009)

  • Wastewater from food processing enterprises is a strong organic-polluted wastewater. It contains mostly organic compounds, which fits to be treated by using biotechnology. The best technology for treatment is anaerobic. Deodorization is one of the most important points of this technology since anaerobic process generated some odor compounds. The main reason which causes bad smell in wastewater was a present of compounds which contains N and S. In this paper we report the result of deodorization by using several oxidant agents. The deodorization was taken after anaerobic process. The result shown that at pH 7-8.5, 4 gram/l of CaO or 120 milligram/l of CaOCl2, 2.4 milligram/l of KMnO4...