1. Introduction Biosurfactants or microbial surfactants are the diverse group of surface active substances synthesized from microorganisms such as bacteria, fungi and yeast or excreted extracellularly ‘Kaur et al. (2012). Like conventional chemical based synthetic surfactants, biosurfactants have ability to reduce surface tension of solution, lower the interfacial tension between two liquids, allow easier spreading, and thereby enhance surface active properties ‘Nitschkea and costab (2007). Commonly, biosurfactants are neutral or anionic in nature.
On the second day of incubation, the plate was removed from the incubator and placed over a hot plate heating Iodine solids. The smoke of the Iodine stained the plate to display the presence or absence of a halo around the bacteria 2.12 Lipid Hydrolysis This test was done by making a single line streak inoculation on a tributyrin agar plate and allowing incubation. After the incubation period, the plate was observed for the presence or absence of a halo around the bacteria. 2.13 Gelatin Liquefaction A gelatin deep was deep stabbed and incubated. After incubation the tubes were placed in 4ºC for 30 minutes.
TREATMENT OF DYEING WASTE WATERBY USING LAB GRADE AND PREPAREDACTIVATED CARBON-A COMPARATIVE STUDY Gobinath.R¬1, SathesKumar.K2, Dharanya.A3, Dinesh.P3, Sangeetha.M3, Priyanga.M3 1-Associate Professor, Department of Civil engineering Jay Shriram Group of Institution, Avinashipalayam, Tirupur 2-Assistant Professor, Department of Civil engineering Jay Shriram Group of Institution, Avinashipalayam, Tirupur 3-Under graduate students, Department of Civil engineering Jay Shriram Group of Institution, Avinashipalayam, Tirupur ABSTRACT The waste water arising from the dyeing industries was a major problem around the Tirupur district. Mostly the waste water arising out of dyeing industries are matching the inorganic industrial waste water condition, in this research an attempt is made at finding
Untreated waste water accommodates a large number of organic and inorganic constituents, noxious micro organisms, and toxic metal components in addition to nutrients. Hence, it is necessary to treat the waste water at the source level, before releasing in to the environment in order to reduce the detrimental effects caused by them. Precisely, protection of environment to sustain public health, aquatic life and other socio-economic concerns are the ultimate goals of waste water management (Tchobanoglous and Burton 1991). Major organic chemical parameters of waste water are, total organic carbon (TOC), biochemical oxygen demand (BOD), chemical oxygen demand (COD) and total oxygen demand (TOD). Acidity and alkalinity, pH, salinity, hardness,
Bioremediation techniques have been effectively used to detoxify soils, ground water and sludge contaminated with hydrocarbons, pesticides, solvents, wood preservatives, and other organic chemicals even for low level residual contamination. Bioremediation cannot detoxify inorganic pollutants but may change the valence state of inorganics causing adsorption, immobilization onto soil particulates from where they can be taken up, precipitated, accumulated, and concentrated through micro or macroorganisms.1 188.8.131.52.
L.ivanovii could ferment the xylose and produce blue colonies with yellow halo but L.monocytogene is non hemolytic and could not ferment the xylose and produce blue colonies without a halo. Other species of Listeria could not cleavage the 5-bromo-4-chloro-3-indolyl-myo-inositol-1-phospjhate (X-IP), a substrate of PI-PLC and grow with white colonies with or without a yellow halo . The CHROM agar could be
So, we need to develop alternate method which can reduce the concentration of contaminants. Pharmaceutical wastewater contains high chemical oxygen demand which cannot be treated using conventional treatment. So, work will be done to find proper advanced treatment which can meet the discharge norms. Further work will be done on factors affecting such as pH, total dissolved solid, TiO2 concentration, etc. Introduction 1.1 General
b) Organic industrial wastewater i. e. wastewater from organic industries comprising of high carbon compounds, metallic ions, charcoal, organic compounds such as steroids, fermentation waste, etc. Some of the common industries responsible for such waste products are pharmaceutical, fertilizer industry, food and beverages industries, leather and textile industries
The existence of wastewater and the need for wastewater treatment is not a new problem. The production of excreta and urine is a natural part of human life, and has a history as long as mankind. In parallel to growing civilizations and increasing urbanity, and with the introduction of the water closet and centralized wastewater collection, problems related to large accumulations of wastewater has arisen. In centralized systems for wastewater collection one could also find other sources to wastewater than only domestic, such as storm water and industrial wastewater sources. Wastewater is generally looked upon as a negative resource, both from an aesthetic perspective and because of its characteristic bad odour, and the fact that its main component
To determine the antimicrobial and the biofilm inhibition of hydrogel films at 100:0, 95:5, 85:15, 75:25 and 50:50 solutions in Staphylococcus aureus, Candida albicans and Pseudomnas aeruginosa Questions What solvent may be used to extract Hyptis suaveolens (L.) Poit? How can the phytochemicals present in Hyptis suaveolens (L.) Poit be determined? How can the Nanochitosan powder be extracted from shrimp shells and be characterized in terms of molecular weight and crystalline structure? What will be the measurements of the physical and mechanical properties of the produced hydrogel films from Nanochitosan/Hyptis suaveolens (L.) Poit and Alginate/Hyptis suaveolens (L.) Poit in terms of in terms of thickness, transparency, tensile strength, swelling behavior and gel fraction? What will be the effects of the hydrogel films on the growth and biofilm formations of the Staphylococcus aureus, Candida albicans and Pseudomnas aeruginosa?