Degradation kinetics of di-(2-ethylhexyl) phthalate (DEHP) and organic matter of sewage sludge during composting

Cheng, Huang–Chung; Kumar, Mathava; Lin, Jih‐Gaw

doi:10.1016/j.jhazmat.2007.09.105

Cited by 49 publications

(22 citation statements)

References 27 publications

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“…Gibson et al (2007) concluded that composting would be the method of choice for reducing organic contaminants but this bioremediation technique requires much longer times than drying. Cheng et al (2008) also came to similar inferences as Amir et al (2005) when investigating the potential degradation of DEHP and OM of sewage sludge by composting using laboratory reactors at different operating conditions. At the end of composting, Cheng et al (2008) observed that the total DEHP degradation was more than 85% in all conditions and the total carbon reduction varied from 7.6 to 11.8%.…”

Section: Phthalic Acid Estersmentioning

confidence: 60%

A comprehensive overview of elements in bioremediation

Juwarkar

Singh

Mudhoo

2010

Rev Environ Sci Biotechnol

305

128

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Sustainable development requires the development and promotion of environmental management and a constant search for green technologies to treat a wide range of aquatic and terrestrial habitats contaminated by increasing anthropogenic activities. Bioremediation is an increasingly popular alternative to conventional methods for treating waste compounds and media with the possibility to degrade contaminants using natural microbial activity mediated by different consortia of microbial strains. Many studies about bioremediation have been reported and the scientific literature has revealed the progressive emergence of various bioremediation techniques. In this review, we discuss the various in situ and ex situ bioremediation techniques and elaborate on the anaerobic digestion technology, phytoremediation, hyperaccumulation, composting and biosorption for their effectiveness in the biotreatment, stabilization and eventually overall remediation of contaminated strata and environments. The review ends with a note on the recent advances genetic engineering and nanotechnology have had in improving bioremediation. Case studies have also been extensively revisited to support the discussions on biosorption of heavy metals, gene probes used in molecular diagnostics, bioremediation studies of contaminants in vadose soils, bioremediation of oil contaminated soils, bioremediation of contaminants from mining sites, air sparging, slurry phase bioremediation, phytoremediation studies for pollutants and heavy metal hyperaccumulators, and vermicomposting.

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Section: Phthalic Acid Estersmentioning

confidence: 60%

A comprehensive overview of elements in bioremediation

Juwarkar

Singh

Mudhoo

2010

Rev Environ Sci Biotechnol

305

128

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“…The main result at this moment is, there is indeed an effect of the different layers future research will show what might be the reason for that. By the way of contrast DEHP degraded faster in the top layer, which suggesting the highest reduction of DEHP was achieved at the highest temperature (Cheng et al, 2008). Possibly the degradation of the different compounds is preferred at different oxygen levels (aerobic and anaerobic processes).…”

Section: Comparison Of Layeringmentioning

confidence: 94%

Personal care compounds in a reed bed sludge treatment system

Chen

Pauly²,

Rehfus³

et al. 2009

Chemosphere

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“…The initial DEHP mineralization activity was well described by first-order kinetics, and the mineralization of the long-term trials (>40 days) was described by fractional power kinetics. The first-order and fractional power kinetics were also used to describe the behavior of DEHP biodegradation in the thermophilic phase, including the initial mesophilic phases (phase I) and the phase thereafter (phase II), respectively [62]. The fractional power kinetic model parameters, i.e., K and N, were calculated by (1)- (3) and derived from a plot of log (C/C 0 ) versus log(t).…”

Section: Kinetics and The Influence Of Experimental Parameters On Dehmentioning

confidence: 99%

“…The degradation of DEHP is directly related to releasable TOCw, perhaps the presence of TOCw improved the solubility and microbial degradability under thermophilic conditions in several studies [61,62]. Bauer and Herrmann [18] revealed that the elution of DEHP from MSW was facilitated by the presence of dissolved organic matter (DOM) even under anaerobic conditions.…”

Section: Kinetics and The Influence Of Experimental Parameters On Dehmentioning

confidence: 99%

Biodegradation of Emerging Organic Contaminants by Composting

Kumar

2012

The Handbook of Environmental Chemistry

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Sewage sludge is a rich source of organic matter and nutrients, which can be utilized for soil improvement and plant growth. The utilization of sewage sludge for plant growth and conversion of sludge into renewable resource is often restricted by the presence of hazardous organic matter (HOM) including di-(2-ethylhexyl) phthalate (DEHP) and antibiotics. HOM enters the sewerage system through various domestic and industrial sources; they are mostly hydrophobic in nature and recalcitrant to microorganisms. HOM has the tendency to accumulate in the sludge during biological wastewater treatment processes and, subsequently, raise the difficulty of further sludge treatment and/or disposal. The application of sewage sludge containing HOM can create risk to ecosystems. The stability and biodegradation of DEHP and antibiotics during composting are discussed in this chapter. Finally, the recent advances in the bioremoval of these HOM are briefly summarized.

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Degradation kinetics of di-(2-ethylhexyl) phthalate (DEHP) and organic matter of sewage sludge during composting

Cited by 49 publications

References 27 publications

A comprehensive overview of elements in bioremediation

A comprehensive overview of elements in bioremediation

Personal care compounds in a reed bed sludge treatment system

Biodegradation of Emerging Organic Contaminants by Composting

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