scholarly journals Molecular and Physiological Characterization of Copper-Resistant Bacteria Isolated from Activated Sludge in an Industrial Wastewater Treatment Plant in Rungkut-Surabaya, Indonesia

2012 ◽  
Vol 6 (3) ◽  
pp. 107-116 ◽  
Author(s):  
WAHYU IRAWATI ◽  
TRIWIBOWO YUWONO ◽  
JOEDORO SOEDARSONO ◽  
HARI HARTIKO
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Resistant Bacteria ◽  
Industrial Wastewater Treatment ◽  
Physiological Characterization

Experience of 16 Years' Operation and Maintenance of the Fukashiba Industrial Wastewater Treatment Plant of the Kashima Petrochemical Complex – II. Biodegradability of 37 Organic Substances and 28 Process Wastewaters

1988 ◽  
Vol 20 (10) ◽  
pp. 201-210 ◽  
Author(s):  
S. Matsui ◽  
Y. Okawa ◽  
R. Ota
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Organic Substances ◽  
Industrial Wastewater Treatment ◽  
Petrochemical Complex ◽  
Toc Removal ◽  
Nitro Aromatics

Twenty-eight process wastewaters and thirty-seven organic substances identified in the wastewater of the Kashima petrochemical complex were subjected to biodegradability tests. The tests consisted of the activated sludge degradability method and a supplementary test using the respiration meter method. Both tests utilized the activated sludge of the Fukashiba industrial wastewater treatment plant, which was acclimatized to the wastewater and organic substances. The 28 process wastewaters were classified into biodegradable, less biodegradable, and non-biodegradable according to the percentage TOC removal and the BOD5/TOC ratio of the wastewater. The 37 organic substances were also classified into biodegradable, less biodegradable and non-biodegradable according to TOC and CODMn removal. In general, chlorinated compounds, nitro-aromatics and polymerized compounds were difficult to biodegrade. From the biodegradability tests of the factory wastewaters, it was found that the refractory CODMn loads of these factories contributed to the load remaining in the effluent of the wastewater treatment plant. Various improvements were made to reduce the discharge of refractory substances from the factories.

Nocardioides daeguensis sp. nov., a nitrate-reducing bacterium isolated from activated sludge of an industrial wastewater treatment plant

2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3727-3732 ◽  
Author(s):  
Yingshun Cui ◽  
Sung-Geun Woo ◽  
Jangho Lee ◽  
Sahastranshu Sinha ◽  
Myung-Suk Kang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Type Species ◽  
Treatment Plant ◽  
Diaminopimelic Acid ◽  
Industrial Wastewater Treatment ◽  
Content Type ◽  
Link Type

A Gram-reaction-positive, rod-shaped, non-spore-forming bacterium (strain 2C1-5T) was isolated from activated sludge of an industrial wastewater treatment plant in Daegu, South Korea. Its taxonomic position was investigated by using a polyphasic approach. On the basis of 16S rRNA gene sequence similarity, the closest phylogenetic relatives were the type strains of Nocardioides nitrophenolicus (98.6 % similarity), N. kongjuensis (98.5 %), N. caeni (98.4 %), N. simplex (98.3 %), N. aromaticivorans (98.1 %) and N. ginsengisoli (97.5 %); the phylogenetic distance from other species with validly published names within the genus Nocardioides was greater than 3 %. Strain 2C1-5T was characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in the cell-wall peptidoglycan, MK-8(H4) as the predominant menaquinone and iso-C16 : 0, C16 : 0 and C17 : 1ω6c as the major fatty acids. The G+C content of the genomic DNA was 74.9 mol%. These chemotaxonomic properties and phenotypic characteristics supported the affiliation of strain 2C1-5T to the genus Nocardioides . The results of physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 2C1-5T from existing species with validly published names. Therefore, strain 2C1-5T represents a novel species of the genus Nocardioides , for which the name Nocardioides daeguensis sp. nov. is proposed, with the type strain 2C1-5T ( = JCM 17460T = KCTC 19799T).

scholarly journals THE POTENCY OF COPPER-RESISTANT BACTERIA Cupriavidus sp. IrC4 ISOLATED FROM INDUSTRIAL WASTEWATER TREATMENT PLANT IN RUNGKUT-SURABAYA AS A BIOREMEDIATION AGENT FOR HEAVY METALS

2015 ◽  
Vol 2 (1) ◽  
pp. 375
Author(s):  
Wahyu Irawati ◽  
Triwibowo Yuwono ◽  
Joedoro Soedarsono ◽  
Hari Hartiko
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Dry Weight ◽  
Resistant Bacteria ◽  
Industrial Wastewater Treatment ◽  
Bioremediation Agent ◽  
Copper Lead

<p>Cupriavidus sp. IrC4 is a copper-resistant bacteria isolated from activated sludge in an Industrial Wastewater Treatment Plant in Rungkut-Surabaya, Indonesia. The purpose of this research was to study the potency of Cupriavidus sp. IrC4 as a bioremediation agent for copper, lead, mercury, and cadmium. Resistance of Cupriavidus sp. IrC4 to heavy metals were determined by measuring the minimum inhibitory concentration (MIC). Accumulation of copper, cadmium, and lead were determined by Atomic Absorption Spectrophotometer. Cupriavidus sp. IrC4 showed multiple resistance to heavy metals. The MICs of Cupriavidus sp. IrC4 to copper, lead, mercury, and cadmium were 16 mM, 15 mM, 6 mM, and 5 mM, respectively. The growth of Cupriavidus sp. IrC4 was inhibited by the addition of CuSO4 in the medium. The bacteria survived in the presence of high copper concentration as shown by the extension of the lag phase up to 36 hours. The analysis demonstrated that the copper resistance of the bacteria was facilitated through the accumulation of copper. Cupriavidus sp. IrC4 accumulated up to 367.78 and 260.01 mg/gram dry weight of cells of copper and lead, respectively. The bacteria demonstrated growth in the medium containing the mixture of 0.5 mM copper, lead, cadmium and accumulated those heavy metals up to 0.14, 24.74, and 12.49 mg/g dry weight of cells, respectively. The high resistance and capability of Cupriavidus sp. IrC4 to accumulate heavy metals can be exploited in bioremediation process for removing heavy metals from industrial sewage. </p><p><strong>Keywords</strong>: Accumulation, copper, Cupriavidus sp. IrC4,heavy metals, resistance.</p>

scholarly journals Sludge Characterization of an Industrial Wastewater Treatment Plant, Iran

2013 ◽  
Vol 1 (2) ◽  
pp. 10-18
Author(s):  
Mehdi Ahmadi ◽  
Nikoo Bayati ◽  
Ali Akbar Babaei ◽  
Pari Teymouri ◽  
◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Industrial Wastewater ◽  
Treatment Plant ◽  
Industrial Wastewater Treatment ◽  
Sludge Characterization
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