background : due to the crucial role of dental solid waste in the spreading of pathogens and threats to human health and the environment, its optimal management is very important. methods: this was a descriptive cross-sectional study. the study population consisted of 40 dental centers, from among which 11 dental centers were selected through random sampling. from each center, 3 samples were co...

The carbonization of coal to produce metallurgical coke is an alternative route for the feedstock recycling of plastic wastes of different structures and origins. Individual plastics or mixed plastics of domestic origin can be incorporated into typical coking blends as secondary raw materials. The effects of the composition of the plastic wastes on the thermoplastic properties of coal, coking p...

Lactic acid can be produced by fermentation of organic matters present in various wastes with the addition of various carbon and nitrogen sources using Lactobacillus species. Organic wastes form kitchen garbage and foodprocessing industries are especially rich in carbon and moisture content. The present study investigates the treatment of the organic wastes using microbiological process for eff...

I n common with most industrial processing industries, the fermentation industries are concerned with waste disposal situations that often become critical. Fermentation wastes usually occur in liquid or solid forms, although some gaseous wastes are also produced. It is worthy of note that, in addition to the problems involved, the disposal of these wastes is particularly interesting to fermenta...

Efficient treatment of pharmaceutical waste is a big challenge because of the enormous quantity, complexity and hazardous nature. Lack of implementation of effective treatment technology aggravates the situations further in the countries facing the challenges of rising population, increasing urbanisation and industrialization generating enormous quantities of industrial wastes. This paper criti...

Uncertainty analysis for model simulations is assuming a growing importance in the field of water quality management. The importance of this concern is provided by recent public awareness over health risks from improper disposal of toxic wastes as well as by the continuing emphasis on risk assessment. The first step in the chain of the risk assessment is the quantification of the error in predi...

The toxic element arsenic (As) occurs widely in solid and liquid mine wastes. Aqueous forms of arsenic are taken up in As-bearing sulfides, arsenides, sulfosalts, oxides, oxyhydroxides, Fe-oxides, -hydroxides, -oxyhydroxides and -sulfates, and Fe-, Ca-Feand other arsenates. Although a considerable body of research has demonstrated that microbes play a significant role in the precipitation and d...

Textile dye industry waste is one of the most serious problems in the environment. The dye wastes are severely deleterious to surface water bodies. The present study was an attempt for the assessment of different physicochemical parameters such as pH, temperature, Electrical Conductivity (EC), Total Solids (TS), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Dissolved Oxygen (DO), ...

Disputes concerning industrial legacies such as the disposal of toxic wastes illustrate changing pressures on corporations and governments. Business and governments are now confronted with managing the expectations of a society increasingly aware of the social and environmental impacts and risks associated with economic development and demanding more equitable distribution and democratic manage...

Lead-rich solid industrial wastes were vitrified by the addition of glass formers in various concentrations, to produce non-toxic vitreous stabilized products that can be freely disposed or used as construction materials. Toxicity of both the as-received industrial solid waste and the stabilized products was determined using standard leaching test procedures. The chemically stable vitreous prod...