The Application of a Mobile Solvent Recovery Process to Minimize Hazardous Waste

According to the directory of hazardous waste, Waste methanol belongs to the hazardous waste. Production of methanol will produce ethers, ketones and other impurities. During the distillation for waste methanol, high concentrations of distillation waste will be produced. In this paper, waste methanol recovery process in a southern chemical plant was adopted as the research object. Methanol and distillation waste were sampled and analyzed, combined with domestic research findings about waste methanol and other organic pollutants, the emission and pollution characteristics of waste methanol were discussed. The results show that Ethers and ketones are the main contaminants of methanol; it has potential hazards for products with such methanol as raw materials. The distillation waste has high COD concentration, containes methanol, mixed alcohol and other toxic substances, which has the risks for environmental pollution and human health.

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Dielectric Processing of Hazardous Materials - Present and Future Opportunities

MRS Proceedings ◽

10.1557/proc-269-453 ◽

1992 ◽

Vol 269 ◽

Cited By ~ 3

Author(s):

Steven J. Oda

Keyword(s):

Activated Carbon ◽

Hazardous Waste ◽

Hazardous Materials ◽

Hazardous Wastes ◽

Solvent Recovery ◽

Dielectric Heating ◽

Waste Streams ◽

Heating Systems ◽

Hospital Wastes ◽

Automotive Emission

Dielectric heating technologies (microwave and radio-frequency, RF) bring unique capabilities to the processing of hazardous wastes. Potential opportunities for using these techniques can be described by classifying and matching waste streams to the particular features of dielectric heating. Microwave and RF applications for processing hazardous waste are at various stages of development and include: solvent recovery, regeneration of activated carbon, pyrolysis of rubber tires, soil remediation, and disinfection of hospital wastes. Other solutions to environmental problems can include the replacement of conventional fossil-fired processes (eg, RF-assisted post-baking of biscuits) and microwave heating of catalyst substrate materil for automotive emission control. Examples of dielectric heating systems that are processing hazardous waste are used to illustrate the benefits of these technologies and to characterize future opportunities.

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Solidification of hazardous waste as a part of the raw material recovery process

E3S Web of Conferences ◽

10.1051/e3sconf/20171801026 ◽

2017 ◽

Vol 18 ◽

pp. 01026

Author(s):

Daria Polek

Keyword(s):

Comparative Analysis ◽

Hazardous Waste ◽

Market Research ◽

Leading Edge ◽

Recovery Process ◽

Raw Material ◽

Material Recovery ◽

Comparative Model

Paper presents the process capabilities for solidification hazardous waste. In the first part of the article the authors present general technologies and methods in a comparative model. The following section describes the results of market research for the most advanced and innovative solidification technologies. Comparative analysis of the material has shown and described the three most promising, leading-edge technologies of waste solidification avalible on the Polish market.

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