Wet peroxide oxidation and catalytic wet oxidation of stripped sour water produced during oil shale refining

Prasad, J. Sarada; Tardio, James; Jani, Harit; Bhargava, Suresh K.; Akolekar, Deepak B.; Grocott, Stephen

doi:10.1016/j.jhazmat.2007.04.082

Cited by 10 publications

(8 citation statements)

References 28 publications

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“…The addition of hydrogen peroxide to the process can be conducted in two ways: (a) the single addition of H 2 O 2 at the beginning of the process and (b) the gradual addition of H 2 O 2 . The gradual addition of H 2 O 2 was reported to be more efficient than the addition of all the H 2 O 2 at the beginning of CWPO, leading to the higher removal of organic pollutants from industrial wastewater and the almost full consumption of H 2 O 2 during the treatment [54,61].…”

Section: Effect Of H 2 O 2 Concentrationmentioning

confidence: 99%

Application of Catalytic Wet Peroxide Oxidation for Industrial and Urban Wastewater Treatment: A Review

2018

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Catalytic wet peroxide oxidation (CWPO) is emerging as an advanced oxidation process (AOP) of significant promise, which is mainly due to its efficiency for the decomposition of recalcitrant organic compounds in industrial and urban wastewaters and relatively low operating costs. In current study, we have systemised and critically discussed the feasibility of CWPO for industrial and urban wastewater treatment. More specifically, types of catalysts the effect of pH, temperature, and hydrogen peroxide concentrations on the efficiency of CWPO were taken into consideration. The operating and maintenance costs of CWPO applied to wastewater treatment and toxicity assessment were also discussed. Knowledge gaps were identified and summarised. The main conclusions of this work are: (i) catalyst leaching and deactivation is one of the main problematic issues; (ii) majority of studies were performed in semi-batch and batch reactors, while continuous fixed bed reactors were not extensively studied for treatment of real wastewaters; (iii) toxicity of wastewaters treated by CWPO is of key importance for possible application, however it was not studied thoroughly; and, (iv) CWPO can be regarded as economically viable for wastewater treatment, especially when conducted at ambient temperature and natural pH of wastewater.

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Section: Effect Of H 2 O 2 Concentrationmentioning

confidence: 99%

Application of Catalytic Wet Peroxide Oxidation for Industrial and Urban Wastewater Treatment: A Review

2018

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“…Other examples of successful pollutants removal from wastewaters include the reduction of pharmaceutical substances like paracetamol [190], herbicides like atrazine [191] and diuron [192], cyanides [193], and the general treatment of stripped sour water [194].…”

Section: As(v) Dyes [167] [168]mentioning

confidence: 99%

Removal of Toxic Materials from Aqueous Streams

Zouboulis

Peleka

Samaras

2015

Mineral Scales and Deposits

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“…At 330°C the COD removal reached about 91.00 and 99.00% after 1 and 3 min, respectively. Higher temperature not only increases energy consumption, but may result in decomposition of H 2 O 2 thereby it reduces the efficiency of H 2 O 2 usage [39]. The oily sludge conversion experiments were conducted at 250-330°C for 9min.…”

Section: Wet Peroxide Oxidation Of Oily Sludge 321 Effect Of Tempementioning

confidence: 99%

Removing Organic Compounds from Oily Sludge

Jing¹,

Luan

Kong

et al. 2012

Energy & Environment

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Oily sludge is one of the largest categories of wastes generated by oil industry petroleum production and petroleum refinery plant. Its release to the environment is strictly controlled and it is classified as priority environmental pollutants by the US Environmental Protection Agency. So, it must be treated. Wet peroxide oxidation (WPO) and catalytic wet oxidation (CWO) of oily sludge were investigated. The result indicated that homogenous catalyst (NaHCO 3) showed effective removal for pollutants. WPO was an effective process for removing organic compounds from oily sludge. This paper may supply a new method of treating oily sludge for the oilfield.

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Wet peroxide oxidation and catalytic wet oxidation of stripped sour water produced during oil shale refining

Cited by 10 publications

References 28 publications

Application of Catalytic Wet Peroxide Oxidation for Industrial and Urban Wastewater Treatment: A Review

Application of Catalytic Wet Peroxide Oxidation for Industrial and Urban Wastewater Treatment: A Review

Removal of Toxic Materials from Aqueous Streams

Removing Organic Compounds from Oily Sludge

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