دانلود رایگان مقاله انگلیسی تابش اشعه فاضلاب با پرتو الکترون کلیدی راهی به سوی شهرهای هوشمند/سبز پایدار - اشپرینگر 2018

Abstract

Remediation of wastewater, sludge and removal of objectionable substances from our environment using radiation technology is neglected. Hardly, a couple of decades ago, application of electron beam (EB) technology has gained attention for waste management. When wastewater is irradiated with electron beam, the beam can alter the physico-chemical properties of irradiated aqueous material and also transform wastewater chemicals due to the excitation or ionization of chemical molecules. Thus, chemical reactions may be capable of producing new compounds. The beam of electrons initiates primary reactions to induce the excitation or ionization of molecules at varied rates. This review paper will help to a budding researcher how to optimize the irradiation process to achieve high efciency with low electron beam energy which is economically viable/ feasible. Application of E-beam radiation for wastewater treatment may ensure future smart cities with sustainable water resources management.

Conclusions

The review has observed that electron beam radiation has the disinfection potential of wastewater and the organic matter in wastewater can also be degraded via transforming from complex to simpler molecular forms that are easily metabolized by native soil microfora during irrigation. Therefore, this review emphasizes the feasibility of EBR for wastewater remediation. Furthermore, it defends that the ionizing radiation can be applied in two ways for treatment of wastewater: remediation at lower dose rate as well as substitution of chlorination at tertiary treatment process and reduction of sewage water’s organic load at higher dose rate. Based on this review, it can be concluded that pollution mitigation using ionizing radiation (electron beam accelerators) is an eco-friendly alternative technology, without using chemical disinfectants ensuring robust life to mankind. Irradiated wastewater is ft for irrigation as well as use in industries which will be a promising solution to existing water demand and also a gateway to sustainable management of fragile fresh water resources for developing countries.