Removal of pentachlorophenol from wastewater by combined anaerobic-aerobic treatment

Bhattacharya, Sanjoy K.; Yuan, Qiang; Jin, Peikang

doi:10.1016/0304-3894(96)01751-7

Cited by 17 publications

(12 citation statements)

References 13 publications

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“…Due to the toxicity of PCP and the fact that it is a probable human carcinogen, some countries have banned or control the use of PCP (Baynes et al, 2002), but other countries still use PCP to prevent fungal attacks on wood (Jensen, 1996). Hence PCP and its intermediate compounds are still detected in the aquatic environment (Bhattacharya et al, 1996;Chen and Parker, 2004;Hanna et al, 2004;Fernández Freire et al, 2005;Farhadi et al, 2009). PCP was used in China during the 1970s to control schistosomiasis .…”

Section: Introductionmentioning

confidence: 99%

Modulation of steroidogenic gene expression and hormone synthesis in H295R cells exposed to PCP and TCP

Liu

et al. 2011

Toxicology

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Section: Introductionmentioning

confidence: 99%

Modulation of steroidogenic gene expression and hormone synthesis in H295R cells exposed to PCP and TCP

Liu

et al. 2011

Toxicology

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“…The dissociated PCP releases a hydrogen ion ( Howard, 1991 ). More PCP adsorption under acidic conditions was reported ( Bhattacharya et al, 1996 ). The pH drop and more affinity between PAC and PCP explains why more PCP desorption was observed in the CA enricher reactor.…”

Section: Resultsmentioning

confidence: 99%

Immobilized‐Cell‐Augmented Activated Sludge Process for Treating Wastewater Containing Hazardous Compounds

Jittawattanarat

Kostarelos²,

Khan

2007

Water Environment Research

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A novel bioaugmentation scheme called immobilizedcell-augmented activated sludge (ICAAS) was developed. Offline enricher reactors were used to maintain immobilized acclimated cells applied to augment completely mixed activated sludge (CMAS) treating a pentachlorophenol (PCP) pulse loading. Cellulose triacetate (CA) and powder activated carbon (PAC) combined with CA (PAC 1 CA) were the two media types used for entrapping the PCP-degrading culture. With ICAAS at 5% by volume augmentation, PCP removal of 73.1 and 75.1% via biodegradation, volatilization, and adsorption onto suspended cells, entrapped cells, and media was achieved for the systems with CA and PAC 1 CA media, respectively, while PCP removal in a control CMAS, which had a comparable level of combined PCP adsorption onto suspended cells and volatilization as the ICAAS, was 48.7%. Results further showed that the immobilized cells retained their PCP-degrading ability when they were fed with the inducer (PCP) once every 20 days. Water Environ. Res., 79, 461 (2007).

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“…Sequential anaerobic/aerobic wastewater treatment has received increasing attention for effective nutrient removal, enhanced degradation of recalcitrant xenobiotics and treatment of high biological oxygen demand (BOD) wastewater (Randall et al, 1997;Bhattacharya et al, 1996;Malaspina et al, 1995). The anaerobic digestion is a feasible unit operation for treatment of high-strength industrial wastewater with less sludge production and less energy consumption (Speece, 1983).…”

Section: Introductionmentioning

confidence: 99%

ATP content and biomass activity in sequential anaerobic/aerobic reactors

Chen¹

2004

J. Zhejiang Univ. Sci.

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Specific ATP content of volatile solids was measured to characterize the sludge activity in a sequential anaerobic/aerobic wastewater treatment system, with an upflow anaerobic sludge blanket (UASB) reactor and a three-phase aerobic fluidized bed (AFB) reactor. The wastewater COD level was 2000−3000 mg/L in simulation of real textile wastewater. The ATP content and the specific ATP contents of volatile solids at different heights of the UASB reactor and those of the suspended and immobilized biomass in the AFB reactor were measured. In the UASB reactor, the maximum value of specific ATP (0.85 mg ATP/g VS) was obtained at a hydraulic retention time (HRT) 7.14 h in the blanket solution. In the AFB reactor, the specific ATP content of suspended biomass was higher than that of immobilized biomass and increased with hydraulic retention time reaching a maximum value of 1.6 mg ATP/g VS at hydraulic retention time 4.35 h. The ATP content of anaerobes in the UASB effluent declined rapidly under aerobic conditions following a 2nd-order kinetic model.

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Removal of pentachlorophenol from wastewater by combined anaerobic-aerobic treatment

Cited by 17 publications

References 13 publications

Modulation of steroidogenic gene expression and hormone synthesis in H295R cells exposed to PCP and TCP

Modulation of steroidogenic gene expression and hormone synthesis in H295R cells exposed to PCP and TCP

Immobilized‐Cell‐Augmented Activated Sludge Process for Treating Wastewater Containing Hazardous Compounds

ATP content and biomass activity in sequential anaerobic/aerobic reactors

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