Air is an important component for the survival of living things, especially humans. However, air quality has decreased due to pollution. The harmful elements that enter atmosphere are Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulfur (SO2), Particulates (PM10), and Ozone (O3). Noise defined as unwanted sound or so it disturbs endangers health. Sources noise divided into moving stationary sou...

In this study, the reduction of Cr(VI) by use of scrap iron, a cheap and locally available industrial waste, was investigated in continuous system. The greater scrap iron efficiency observed for the first two sections of the column filling indicate that most of the reduction process was carried out in the bottom half of the column filling. This was ascribed to a constant decrease of Cr(VI) conc...

Cottage industries comprise a sub-group of informal sector income generation activities which are conducted in the home environment and organized around families or households. Cottage industry workers may be at risk of exposure to harmful substances associated with their work, and given the lack of separation of cottage industry activities from living spaces, their families and neighbors may s...

A key element for realizing long term sustainable use of any metal will be a robust secondary recovery industry. Secondary recovery forestalls depletion of non-renewable resources and avoids the deleterious effects of extraction and winning (albeit by substituting some effects of its own). For most metals, the latter provides strong motivation for recycling; for light metals, like aluminum, the...

The recasting of previously casted alloy is a routine procedure used in dental laboratories in order to reduce the cost of permanent partial dentures. The prosthetic “scrap” encompasses the residuals generated in frame dentures casting process e.g. originating from the runners, from casting cones and improperly completed melts e.g. withmisruns, shrinkage porosities and cracks and is frequently ...

The purpose of this article is to assess the process electrification transport in Tashkent and forecast some possible consequences until 2027. It has been established that with growth electrification, it achieve hazardous concentrations particulate matter atmospheric air city. A significant relative increase ferrous non-ferrous metal waste (by 1.3...3.6 times), as well scrap tires 1.5 times) al...

The increased demand for secondary materials, particularly scrap metals, in cities due to development activities both emerging economies and developing countries has the recycling materials. It accelerated growth of circular economy climate-smart development. This paper investigated synergy between sustainable solid waste management Tanzanian by examining business’s categories, quantity, market...