The usage of grassland significantly affects the microbial and biochemical parameters soil epipedons. use grasslands (by mowing, grazing, mowing grazing) dominance bacteria in abundance relative to fungal populations. This was particularly noticeable when manual applied. In general, highest number microorganisms occurred during spring summer, which should be associated with intensity growth roo...

The increasing use of herbicides in recent years for improved crop yields requires a risk assessment. To assess their impact on soil, the an indicator named synthetic biological (ISB%) is proposed, which includes range biotic and enzymatic parameters derived from previous experiments. Three sulfonylurea were evaluated, chlorsulfuron, amidosulfuron, tifensulfuron. monitored using different herbi...

a new medium, termed ecol was developed for the detection and enumeration of e. coli. the selective properties of ecol medium for the detection of e.coli from mixed culture in wastewater was tested and compared with conventional coliform media at 37°c and 44°c. results clearly showed that ecol medium was enable to direct confirmation of e.coli to be carried out by the indole reaction. the resul...

background: one of the main and basic pillars of health system promotion is the equitable distribution of health facilities in order to ensure fair access of people in the community to the health services. the goal of this study was to classify the health structural indicators in golestan province using scalogram analysis model. method: a descriptive study was conducted in 2010. data related to...

Biochar as a biomass derived, low cost, carbon conductive material is considered an important supplement in the anaerobic digestion (AD) of organic matter. It functions electrical grid to allow direct electron transfer from fatty acid oxidizers methanogenic archaea, thereby promoting syntophy between various microbial groups and leading efficient methanogenesis. Specific properties biochar play...

A bacteriological study of fish is critical to protecting people from potential hazards and serving as an indicator water contamination. The was carried out investigate microorganisms the Labeo rohita. total bacterial load measured in skin, gills, intestine. It had a (TBL) 1.54×109 CFU/g on average. intestine highest average TBL 2.09×109 CFU/g, while gill lowest 1.08×109 CFU/g. Isolated bacteri...

In low income settlements where the quality of drinking water is highly contaminated due to poor hygienic practices at community and household levels, there is need for appropriate, simple, affordable and environmentally sustainable household water treatment technology. Solar water disinfection (SODIS) that utilizes both the thermal and ultra-violet effect of solar radiation to disinfect water ...

Biochemical oxygen demand (BOD) is a widely used parameter to assess the organic pollution in water systems. This parameter can be detected by the amount of oxygen consumed via microorganisms in aerobic metabolism of organic matter present in the water. The authorized test to analyze biodegradable organic compounds is given by the American Public Health Association Standard Method Committee tha...