Vermiconversion of Textile Industrial Sludge; Waste Management and Nutrients Recycling

The present study aimed for the conversion of textile industrial sludge (TIS) amended with the cow dung into vermicompost operated by the epigenic earthworm Eudrilus eugeniae. To accomplish the intent of the experiment, the substrate was allowed to decompose for 30 days, under monitored environmental conditions. Three different combinations were prepared (V25%, V50%, and V75%) from TIS, and compared with Vagro (vermicompost prepared from agricultural waste) and Vsoil. Among the entire three treatments, V75% was shown by physicochemical parameters for Trigonella foenum (Fenugreek/Methi) plant growth, seed germination, and leave production in the tested pot. The maximum amount of available nitrogen, phosphorus, potassium (NPK) was recorded at V75%. On the other side, toxic metal (Cr, Mn, Cu, Pb Cd, and Zn) concentrations were diluted to minimum levels. The result advised that vermicomposting consider one of the alternative methods for waste management and energy recovery from industrial waste

Role of Microbial and Organic Amendments for the Enrichment of Methane Production in Bioreactor

Studies were carried out on lab-scale levels for biogas production using two different wastewaters, that is, herbal pharmaceutical wastewater and food processing wastewater. A total of eight methane bacteria were isolated from cattle dung and mass culturing was carried out to study their feasibility in biogas escalation. Optimization of methane bacteria that could increase biogas production was identified. Among the methane bacteria, two species Bacillus sk1 and Bacillus sk2 were found to enhance the biogas production to a maximum level. Gas analysis showed CH4 content of 63% in the case of food processing wastewater and around 67% with herbal pharmaceutical wastewater. Bacillus sk1 was found to be more suitable for both wastewater and biogas production and was found to be 46.4% in food processing wastewater and 43.3% in herbal pharmaceutical wastewater. Amendment of Bacillus sk2 in food processing wastewater produces 39.7% and 30.3% of biogas in herbal pharmaceutical wastewater was observed. Enzyme Bacillidine™ (P-COG-concentrate aqueous base) was also tried but results were not very encouraging. Comparative studies on both the wastewater have been discussed in detail in this article

UVC based sterilization for hospitals during COVID-19 pandemic for the control of pathogenicity

As it is well known that hospitals became the hotspots for the spread of COVID-19, it is preferable to control the transmission of infection by UVC. As UVC became much safer to use than any other UV lights, the transmission of airborne pathogens is the fastest means of spread of infection in human during outbreak of current pandemic COVID-19 caused by COV-2. UVC light is a historic and prudent philosophy for contravention and reduction of airborne viral infections without the human hazards with normal germicidal UVC lights. The use of outstandingly low level UVC light in open territories may address a secured and fitting strategy for limiting the transmission and spread of airborne-interceded microbial contamination. Public places like medical clinics, offices and public division may have higher risk of infection spread. UV-C lights are highly recommended and favored techniques to treat and maintain a strategic distance from contamination. The scope of this review paper is to study advantages and disadvantages of UVC and its effects on human body

Fly ash characterization, utilization and Government initiatives in India ΠA review

11-18Current annual production of fly ash, a by-product from coal based thermal power plants (TPPs), is 112 million tonnes (MT). Some of the problems associated with fly ash are large area of land required for disposal and toxicity associated with heavy metal leached to groundwater. This review presents different ways of using fly ash and policies of Govt of India regarding utilization and disposal of fly ash. Environmental and occupational health hazards associated with fly ash are also discussed