Introduction: One of the methods for disposal of sludge is its usage as fertilizer on agricultural. The purpose of this study was to analyze the possibility in the application of sludge to agricultural, according to environmental standards. Materials and Methods: This descriptive-analytic study was conducted for 12 months on dried sludge wastewater treatment plant in Yazd. Monthly sampling and...

Low molecular weight organic acids are most predominant in apple juice among these components fumaric acid was not exceed more than 5 ppm. It was thought that the HPLC is the best method of the determination of organic acids in the apple juice. In this study, chromatographic separation of organic acids of apple juice was obtained by preparing a sample and by applying them to acid phase for ...

Demand for organic milk is partially driven by consumer perceptions that it is more nutritious. However, there is still considerable uncertainty over whether the use of organic production standards affects milk quality. Here we report results of meta-analyses based on 170 published studies comparing the nutrient content of organic and conventional bovine milk. There were no significant differen...

Wastewater treatment issues are extremely important for humanity. Their consideration becomes more than a necessity, a responsibility and every producer must improve their treatment processes. The efficiency increasing of these processes has been done in two ways: 1. by technological way various types of treatment were developed during the past years and this domain has almost no technological ...

About 0.3 g of freeze-dried and powdered sediment sample was decalcified using HCl. Subsequently Total Organic Carbon (TOC) and δ 13 Corg concentrations were measured using a Fisons Instruments CNS NA 1500 analyzer coupled to a Thermo Delta Plus isotope ratio spectrometer. Results were normalized to international standards. Average analytical uncertainty based on duplicate analyses of sediment ...

The T waves of the precordial electrocardiograms are upright in healthy adult white subjects. On the other hand, several reports have drawn attention to T-wave inversion "juvenile pattern" in adult Negroes free of organic heart disease. This study demonstrated no increased incidence of the "juvenile pattern" in healthy adult Negroes. The standards for normality are identical for both white and ...

We synthesized some inorganic and organic salts of cholesteryl hemisuccinate. Aqueous solutions of the morpholine salt, at concentrations equivalent to 400 mg of cholesterol per deciliter, have been evaluated as aqueous cholesterol standards and compared to alcoholic cholesterol solutions in analyses for cholesterol in serum, as performed by two analytical reference procedures. No significant d...

This study compared organically reared chickens with conventionally reared ones with regard to fatty acid composition traits. The conventional and organic flocks with an average age of 40 days were raised in an indoor pen. Stocking densities of conventional and organic ones were 0.05 and 0.13 m/bird, respectively. The conventional diet was formulated with common ingredients whereas the organic ...

Discussion on the potential for developing countries to develop trade in niche markets such as higher welfare standards has been highlighted with moves by the World Organisation for Animal Health (OIE) to set internationally agreed standards for animal welfare. This paper examines the existing and potential trade in value-added higher welfare products using case studies in the beef and poultry ...

due to the population growth and human activities in the agricultural and industrial fields, healthy and sanitary water has become scarce. due to its high contamination load, environmental harms and water discharge standards, starch producing industry is regarded as one of the industries polluting water sources which its treatment and recovery remains important. in the present study, after fabr...