MICROBIOLOGYCAL CHARACTERIZATION AND POTENTIAL APPLICATION OF INDIGENOUS B.METHYLOTROPHYCUS Ba1 IN HANDLING OF CANNA EDULIS. KER PROCESSING CRAFT VILLAGE WASTEWATER


Authors

  • Nguyen Nhu Ngoc Vietnam National University of Forestry
  • Nguyen Van Cach Hanoi University of Science and Technology
  • Tran Lien Ha Hanoi University of Science and Technology
  • Pham Thi Thuy Giang Hanoi University of Science and Technology

Keywords:

Activated sludge, aerobi, Bacillus methylotrophicus, selection, wastewater treatment

Abstract

Canna edulis. Ker starch processing wastewater from craft villages contains high organic concentration such as starch, cellulose, xylan, protein… and especially high starch concentration after the states of grinding, sedimentation and filtration. The concentration of COD and BOD5, SS and coliform of wastewater are hundreds times higher than standards. To handle and recover organic pollutants of  this wastewater, we focus on  strains that are able to efficiently convert organic pollutants into biomass. The microbial biomass along with activated sludge – a kind of material can be applied to many other purposes are removed out by settling well while processing. From starch processing sludge and wastewater, strain of Bacillus methylotrophycus Ba1 was selected with notable features: having the ability to use a variety of substrates (starch, cellulose, xylan, protein) with highest amylase activity (D/d = 12.5), COD removed efficiency (90% after 12 hours) and good sedimentation of activated sludge with SVI = 120.4. The results also showed that the optimal conditions for its biomass production: temperature 30oC, initial pH 6.0 and inoculum of 7% (v/v). After 24 hours incubation at these conditions, the highest biomass was measured OD600 of 2.91.

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Published

12-10-2016

How to Cite

Nhu Ngoc, N., Van Cach, N., Lien Ha, T., & Thi Thuy Giang, P. (2016). MICROBIOLOGYCAL CHARACTERIZATION AND POTENTIAL APPLICATION OF INDIGENOUS B.METHYLOTROPHYCUS Ba1 IN HANDLING OF CANNA EDULIS. KER PROCESSING CRAFT VILLAGE WASTEWATER. Journal of Forestry Science and Technology, (5), 003–009. Retrieved from https://jvnuf.vjst.net/en/article/view/1382

Issue

Section

Biotechnology & Plant breeds