Comparative Study of Solar Inactivation of Total Coliforms through Transparent Plastic Bottles and Fabricated Disinfection Setup

Abstract

The water is disinfected through different techniques commonly used at domestic level, including boiling, chlorination, UV (Ultraviolet) disinfection, etc. These methods require extensive amount of chemicals, energy and trained manpower. The solar disinfection of drinking water found as best among all other disinfection techniques as it is easy to apply, economically feasible and environmentally friendly technique. In this study a series of experiments were conducted in order to characterize the bacterial inactivation process contained in FDS (Fabricated Disinfection Setup), consists of a stainless steel tub and glass covering, and TPB (Transparent Plastic Bottles). In this study the role of solar radiation in bacterial inactivation process is compared in transparent plastic bottles and stainless steel tub to determine the performance of both by simulating conditions of turbidity, temperature, and exposure time. The results showed that disinfection of water contained in a stainless steel tub promoted more successful inactivation of total Coliforms reduction about 80% than that of transparent plastic bottles about 70%.

Development of cost-effective solar water desalination unit for the arid regions of rural areas of Sindh

“…Until and unless arid region has great intensity of solar radiations. The intensity of solar radiation can generate the concept of the solar water treatment techniques and can be adopted in the arid regions with fresh water [13][14]. In Pakistan on horizontal surface the mean solar insolation falling is about 200-250 watt per sq.…”

Evaluation of operational parameters for the removal of turbidity and total coliform from wastewater using fabricated electrocoagulation treatment unit

“…An extensive variety of wastewater cleaning methods are recognized which consist of biological process as well as a choice of physical and chemical methods which require chemical additions [10]. Frequent usage of physical and chemical cleaning procedures is filtration, air stripping, ionexchange, chemical precipitation, chemical oxidation, carbon adsorption, ultrafiltration, RO, electro dialysis, volatilization, gas stripping and solar disinfection [11][12]. By cloud of identical favourable procedures built on EC technique are getting established, additionally present methods are upgraded which ensure no any addition of chemical [13].…”