Background and Objectives: Disposal of hospital wates is a significant environemtal concerns, particularly in develoing regions of the world. Addressing this challenge relies on availability of detailed data on the current status of wate management. Mazandaran Province is located in southern coast of the Caspian Sea and thus its environmental status may directly influe...

This study was initiated to evaluate and optimize the conversion of animal fat from tannery wastes into methyl ester. In the pre-treatment stage, animal fats feedstock was hydrolysed and esterified through solid state fermentation (SSF) using Microbacterium species immobilized onto sand silica matrix. After 72 hours of fermentation, predominant esters in the animal fats were found to be with 83...

Solid waste management has moved to the forefront of the environmental agenda. Nations are considering restrictions on packaging and controls on products in order to reduce solid waste generation rates. Local and regional governments are requiring wastes to be separated for recycling, and some have even established mandatory recycling targets. However, industrial and everyday activities continu...

Biotransformation of p-coumaric acid by Paecilomyces variotii resulted in the accumulation of a metabolite which was identified as p-hydroxybenzoic acid. We studied the possibility of enhancing this metabolite by various parameters such as varying the concentration of substrate, addition of different nitrogen sources and carbon sources at varying concentration and use of different agricultural ...

Two-pot experiments with ryegrass and wheat plants were conducted in a Cambic Arenosol to test the reliability of N fate predicted by incubation experiments previously performed, with the same soil, to assess potentially mineralizable nitrogen from six organic wastes (municipal solid waste compost, secondary pulp mill sludge, horn meal, poultry manure, solid phase from pig slurry and composted ...

Agro-industrial wastes are mainly composed of complex polysaccharides that might serve as nutrients for microbial growth and production of enzymes. The aim of this work was to study polygalacturonase (PG) production by Aspergillus niveus cultured on liquid or solid media supplemented with agro-industrial wastes. Submerged fermentation (SbmF) was tested using Czapeck media supplemented with 28 d...

dental offices produce a variety of dangerous wastes during normal business day. most of these waste are non-hazardous that can be managed as household wastes; however, some component are hazardous and can pose a risk to human and the environment if discarded to municipal solid wastes. these types of wastes must be managed separately. therefore, the aim of this study was to assess the component...

This report presents case studies which document site visits conducted to characterize paint related waste activities of Illinois paint manufacturers, users, and waste processing facilities. Case studies are presented for eight paint users, four paint manufacturers, and one paint related waste processing facility within Illinois. In addition, two case studies document visits to waste processing...

Bangladesh is committed to the peaceful use of atomic energy and has signed all protocols and additional protocol of the International Atomic Energy Agency (IAEA) in this regards. Bangladesh is operating nuclear facilities using radioisotopes, sealed radioactive sources (SRS) and generating radioactive wastes including spent SRS. This paper mainly focuses on the safe management of spent SRS gen...

UNLABELLED Ammonia emissions were quantified for the laboratory-scale composting of three typical organic wastes with medium nitrogen content: organic fraction of municipal solid wastes, raw sludge and anaerobically digested sludge; and the composting of two wastes with high nitrogen content: animal by-products from slaughterhouses and partially hydrolysed hair from the leather industry. All th...