the water and waste-water industry, as an infrastructure industry, has wide interactions with the public by having more than 20 million subscribers (27 million units). one of these interactions is the collection of debt considering the nature of the obligation sales and service rendered. collection of debt and the costs imposed as a result of the qualitative and quantitative services offered to...

16 There has been growing interest in establishing food waste prevention and recovery 17 programs throughout the world. The drive to target food waste stems from increasing concerns 18 about resource conservation, food security, food waste’s environmental and economic costs, and 19 a general trend in the waste management industry to transition to more sustainable practices. 20 Here the drivers ...

The management of waste electrical and electronic equipment (WEEE), or e-waste for short, has only fairly recently been added to the agendas of organisations responsible for waste management. Experiences around the globe have shown that the usual waste manager, the municipality, is not adequately equipped to handle this complex waste stream. Two new paradigms, however, are the principal drivers...

Microbial fuel cells are presented as the promise of technology to generate electricity by using organic waste. In this research, molasses waste from Laredo Agroindustrial Company was used fuel, well graphite and zinc electrodes, managing build low-cost cells. It possible voltage current peaks 0.389 ± 0.021 V 1.179 0.079 mA, respectively. The showed that acid pH levels conductivity values were ...

Construction solid waste has caused serious environmental problems. Reuse, recycling and reduction of construction materials have been advocated for many years, and various methods have been investigated. However, the effectiveness of its applications seems limited. This paper examines rates of reusable and recyclable waste for six major types of building materials: plastic, paper, timber, meta...

THE CITY OF COLOMBO , which has a resident population of little over half a million, and a total area of 3731 hectares, is administered by a Municipal Council. The collection and disposal of solid waste generated within the City is a function of the Municipal Council, and is carried out by its six district offices. The Colombo Municipal Council (CMC) collects around 500 metric tons of solid was...

During the past several years, waste produced by the electroplating industry has attracted attention due to the level of pollutants found in the waste stream, the difficulty associated with treatment, and the cost of waste disposal. EPA has enacted regulations to control the discharge from plating facilities and estimates that 140 million lb of metal pollutants will be prevented from being disc...

The solid waste of sago industry using cassava was fermented by Aspergillus niger, Aspergillus terreus and Rhizopus stolonifer in solid state fermentation. Cassava waste contained 52 per cent starch and 2.9 per cent protein by dry weight. The amylase activity was maintained at a high level and the highest amylase activity was observed on the 8(th) day in R. stolonifer mediated fermentation. R. ...

As do many industries, colleges and universities encounter thorny problems in dealing with hazardous wastes. Industry and academia alike are saddled with the rising cost of waste management and face perpetual liability for costs of waste cleanup. Unlike many industries, however, colleges and universities generate small amounts of waste, most, but by no means all of which is generated in laborat...