Screening and Characterization of Several 2,2-Dicholoropropionic Acid–Degrading Bacteria Isolated from Marine Sediment of Danga Bay and East Coast of Singapore Island

Abstract As a step toward bioaugmentation of coking wastewater treatment 45 bacteria strains were isolated from the activated sludge of a coking wastewater treatment plant (WWTP). Three strains identified as Bacillus cereus, Pseudomonas synxantha, and Pseudomonas pseudoaligenes exhibited high dehydrogenase activity which indicates a strong ability to degrade organic matter. Subsequently all three strains showed high naphthalene degradation abilities. Naphthalene is a refractory compound often found in coking wastewater. For B. cereus and P. synxantha the maximum naphthalene removal rates were 60.4% and 79.8%, respectively, at an initial naphthalene concentration of 80 mg/L, temperature of 30 °C, pH of 7, a bacteria concentration of 15% (V/V), and shaking speed of 160 r/min. For P. pseudoaligenes, the maximum naphthalene removal rate was 77.4% under similar conditions but at 35 °C.

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ISOLATION AND CHARACTERIZATION OF PHENOL DEGRADING BACTERIA FROM INDUSTRIAL WASTEWATER AND SEWAGE WATER

Zagazig Journal of Agricultural Research ◽

10.21608/zjar.2021.175276 ◽

2021 ◽

Vol 48 (2) ◽

pp. 443-457

Author(s):

Salma Salem ◽

H. Abd El‌‌‌-Fattah ◽

Howaida Abdelbasit ◽

S. Mahgoub

Keyword(s):

Industrial Wastewater ◽

Sewage Water ◽

Isolation And Characterization ◽

Degrading Bacteria

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IDENTIFICATION AND MOLECULAR CHARACTERIZATION OF TOLUENE DEGRADING BACTERIA FROM CAR SPRAY PAINTING WORKSHOPS

International Journal of Advanced Research ◽

10.21474/ijar01/11212 ◽

2020 ◽

Vol 8 (6) ◽

pp. 1253-1259

Author(s):

Ligi Lambert D Rosario ◽

◽

Neethu N.M ◽

Keyword(s):

Molecular Characterization ◽

Spray Painting ◽

Degrading Bacteria

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Shear Strength Characterization of Bauxite Deposits in Kuantan, East Coast Malaysia

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c1014.1183s319 ◽

2019 ◽

Vol 8 (3S3) ◽

pp. 404-407

Keyword(s):

Shear Strength ◽

Moisture Content ◽

East Coast ◽

Field Performance ◽

Friction Angle ◽

Parent Rock ◽

Index Tests ◽

Strength Characterization ◽

The Relationship

Engineering characterization which are useful for "temperate" zone soils usually fail to predict the field performance of bauxitic soils, because the index tests upon which the characterization are based are not always reproducible for bauxitic soils. Fifteen (15) bauxitic soil of undisturbed and disturbed samples from 3 distinct sites in Kuantan, all derived from basalt parent rock but representing various stages of weathering were subjected to engineering and mineralogic tests. Values for cohesion and friction angles are evaluated. Soils from Semambu has the highest moisture content of 33.27%, the cohesion value is however lower compared to Bukit Goh which has moisture content of 21.74%. Study are further done to discover the relationship with cohesion and friction angles. Thus, by measuring the cohesion and friction angle can evaluate the performance of bauxite shear strength.

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