The low impact development (LID) approach has been recommended as an alternative to traditional stormwater design. Research on individual LID practices such as bioretention, pervious pavements, and grassed swales has increased in recent years. Bioretention cells have been effective in retaining large volumes of runoff and pollutants on site, and consistently reduced concentrations of certain po...

Biochar, as an high efficiency, environmental friendly, and low-cost adsorbent, is usually used as soil conditioner, bio-fuel, and carbon sequestration regent. Recently, biochar has attracted much attention in wastewater treatment field. There are plenty of studies about application of biochar to adsorb pollutants in wastewater, because of its low-cost preparation, high surface area, large pore...

Urban areas typically have a high degree of impervious surfaces— that is, roads, parking lots, rooftops, and other surfaces that impede the movement of water into the soil. In predevelopment areas with natural ground cover, over half of precipitation infiltrates the soil to replenish groundwater tables, and only a small amount (10%) remains as runoff into stormwater systems, rivers, and lakes. ...

Laccase (benzenediol : oxygen oxidoreductases; E.C. 1.10.3.2) a copper oxidase enzyme is capable of oxidizing phenolic and non-phenolic lignin related compounds as well as highly recalcitrant environmental pollutants such as aromatic amines. Their broad substrate specificity makes laccases highly suitable for diverse applications such as pulp bleaching, textile dye bleaching and bioremediation,...

A perfusion technique was used to study the effects of l) simulated acid rain on the mineralization and nitrification of glycine (NH 2-N) or ammonium sulfate (NH4-N) by adjusting the pH of the perfusates to 3.0, 2.5, or 2.0 with H 2S0 4 ; and 2) 0, 50, I 00, 500, and I ,000 1-1-g Cd!g dry weight of soil on the mineralization and nitrification of NH 2-N, both in soil adjusted with H 2S04 to pH 3...

Problem statement: The chemical pollution of soil has become a major source of concern and has posed serious health problems within the last few years in many developed nations. A variety of organic and inorganic pollutants, including heavy metals, are being mixed in with the cultivated soil and water. Sewage sludge was one of the major sources of enrichment of heavy metals. These pollutants ar...

Sugar mills plays a major role in polluting the water bodies and land by discharging a large amount of wastewater as effluent. The sugar mill effluents are having higher amount of suspended solids, dissolved solids, BOD, COD, chloride sulphate, nitrates, calcium and magnesium. The continuous use of these effluents harmfully affect the crops when used for irrigation. As a result, a higher amount...

areas surrounding mines are severely vulnerable to pollution due to mine explorations, excavations and transportations. nowadays spectrophotometers and spectral reflectance are applied for estimating the concentration of pollutants due to high costs of sampling and laboratory measurements. this research was carried out to determine spatial distribution of lead concentration in soil particle siz...