introduction: organic fertilizers are beneficial to maintain and improve structure of the soil nutrients; however, in case of presence of pathogenic microbial agents and pathogens inside them, it will result in health problems and disease transmission. therefore, present study aimed to determine microbial quality of produced vermicomposts in yazd city. methods: this study was a descriptive-anal...

Waste management is the collection, transport or disposal and management of waste materials. Most waste management activities are decided upon and carried out in a public, semi-public area typically involving the waste management organization, one or more regulators and other stakeholders and members of the public. The management of waste is not only the responsibility of governments, but also ...

background: successful waste management programs are linked to internal factors, sw (strength and weakness points), and external factors, ot (opportunities and threats), and at the macro level are grounds for sustainable development. studies may be related to david’s study which presented a method to quantify strength, weakness, opportunity, threats (swot) analysis. methods: in this study, desi...

Malathion has been identified in at least 21 of the 1,623 hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (HazDat 2003). However, the number of sites evaluated for malathion is not known. The frequency of these sites can be seen in Figure 6-1. All of the 1,623 sites are located within the United States; none of the sites are located in the C...

s of papers 47 follow manner. Rules for Animal Feeding Operations have been recently enforced and will require adoption of appropriate Best Management Practices (BMP’s), which includes Nutrient Management Planning for all operations where animals are raised in confinement according to regulatory definition. Nutrient management is necessary for agricultural production systems to protect air, soi...

low-cost grapefruit peel (agricultural waste) was used for removal of reactive blue19 dye fromaqueous solutions. the process was studied as a function of contact time, initial dye concentration andph. adsorption process was attained to the equilibrium within 45 min for initial dye concentrations of 50,75, and 100 mg l-1. an acidic medium was the optimum condition for adsorption of dye at roomte...

agricultural waste biomass generated from agricultural production and food processing industry are abundant, such as durian  peel, mango peel, corn straw, rice bran, corn shell, potato peel and many more. due to low commercial value, these wastes are disposed in landfill, which if not managed properly may cause environmental problems. currently, environmental laws and regulations pertaining to ...

background: waste produced in dental clinics has been the topic of investigations for many years. these waste materials have important health impacts and are hazardous to humans and the environment. objective: to investigating solid waste production and its management in dental clinics in gorgan, northern iran. methods: in this cross-sectional study, 45 of 143 public dental practices and 5 of 2...