Enhancement in characteristics of sewage sludge and anaerobic treatability by electron beam pre-treatment

Degradation and toxicity assessment of sulfamethoxazole and chlortetracycline using electron beam, ozone and UV

“…Recently, the radiation processes such as gamma ray or electron beam (E-beam) have been studied and applied to remove organic compounds in the environment [23][24][25]. The radiation processes typically form radicals such as hydroxyl radical (OH • ), hydrogen radical (H • ), and hydrated electron (e − eq ) and the produced radicals are used for oxidizing organic pollutants.…”

Biosolids and Sludge Management

“…was studied to enhance sludge biodegradability. Park et al (2009) found irradiation thickness as a key factor affecting the efficiency of solubilization of organic matter in the solids, whereas exposure time was the most critical parameter in inducing cell lysis in sewage sludge. A 22% increase in biogas gas production was observed when the sewage sludge was treated at a sludge thickness of 0.5 cm and an irradiation dosage of 7 kGy.…”

Application of electron beam water radiolysis for sewage sludge treatment—a review

“…Apart from industrial pilot plants, there have also been numerous research studies of electron beam (EB) treatment on the laboratory scale. These fundamental studies have revealed that EB has a profound influence on bacteria, virus and parasite removal (Borrely et al 1998 ; Capodaglio 2017 ; Chmielewski et al 1995 ; Engohang-Ndong et al 2015 ; Farooq et al 1992 ; Getof 1995 ; Hossain et al 2018 ; Maruthi et al 2013 , Maruthi et al 2011a ; Moraes et al 2004 ; Praveen et al 2013 ; Pribil et al 2007 ; Rawat and Sarma 2013 ) and the solubility of carbohydrates, proteins and lipids (Changqing and Min 2012 ; Engohang-Ndong et al 2015 ; Lim et al 2016 ; Park et al 2009 ; Shin and Kang 2003 ), as well as colour and odour removal (Bae et al 1999 ; Engohang-Ndong et al 2015 ; Kim et al 2007 ; Paul et al 2011 ; Tobien et al 2000 ). Another crucial issue is the electron beam irradiation effect on biochemical oxygen demand (BOD) and chemical oxygen demand (COD), which are used worldwide to measure the number of organic compounds in water (Royal Commission on Sewage Disposal 1915 ; U.S. Environmental Protection Agency 2011 ).…”

“…It is also common to use incineration with energy recovery, where temperatures range between 800 and 1200 °C (DEFRA 2012 ). There were some tests on implementing the EB before the AD unit (Park et al 2009 ; Rawat and Sarma 2013 ; Shin and Kang 2003 ), but most of the studies have been done on EB radiolysis of the already anaerobically treated sludge. The list of the most important parameters of the AD itself, EB + AD and THP + AD and of the incineration processes is shown in Table 13 .…”