Increased interest over the levels of pharmaceuticals detected in the environment has led to the need for new approaches to manage their emissions. Inappropriate disposal of unused and waste medicines and release from manufacturing plants are believed to be important pathways for pharmaceuticals entering the environment. In situ treatment technologies, which can be used on-site in pharmacies, h...

A preliminary study of the manufacture of dyes and pigments was conducted to determine if process waste streams might contain hazardous material. The study first identifies the dyes and pigments that belong to the major segments of the industry, the amounts produced, and the known U.S. producers. The chemistry of these dyes and pigments is discussed as well as the overall production process and...

The management of residues from thermal waste treatment is an integral part of waste management systems. The primary goal of managing incineration residues is to prevent any impact on our health or environment caused by unacceptable particulate, gaseous and/or solute emissions. This paper provides insight into the most important measures for putting this requirement into practice. It also offer...

Gasification of biomass as a technological option for energy conversion is a concept that is widely discussed and taken into consideration. Due to financial incentives, i.e. increased feed – in tariffs, several small scale gasification units have been developed in Europe. In principle, the two main products of gasification are syngas, which is a gaseous fuel and char, which is a solid fraction ...

Current hazardous waste disposal policies in the Home Health Care setting were evaluated as it related to the need for better regulation of hazardous materials entering residential waste streams. It was found that all waste materials from home care visits with the exception of “sharps,” were placed directly into residential waste streams. Therefore, large volumes of potentially hazardous waste ...

The burgeoning nanotechnology industry is rapidly generating new forms of waste streams generically referred herein as nanowastes. However, little is known about the fate and behavior of these waste streams and their impacts thereof in different ecological systems despite their increasingly widespread dispersion into the environment through production, distribution, handling, and nanomaterials ...

This review focuses on our research findings about efficiency of different nano materials synthesized by us for photocatalytic hydrogen production from industrial wastes. Lab-scale reactors were fabricated liquid phase alkaline waste streams and gaseous sulfide. The effects operating parameters namely pH, flow rate, light intensity, depth, sulfide sulphite concentration investigated 7 photocata...

This synopsis of FT-IR spectroscopic applications in waste management covers relevant issues regarding monitoring, process and quality control. Quality in this context means low reactivity, low gas forming potential and compliance with limit values of materials to be landfilled, appropriate compost ingredients and improvement of the stable carbon pool by humification of compost organic matter. ...

An ideal engineered soil cover can mitigate acid rock drainage (ARD) by limiting water and gaseous O2 ingress into an underlying waste rock pile. However, the barrier layer in the soil cover almost invariably tends to develop cracks or fractures after placement. These cracks may change water flow and O2 transport in the soil cover and decrease performance in the long run. The present study empl...