Xem 1-20 trên 76 kết quả Industrial discharge
  • Ever since the Industrial Revolution, industrial activities have been accompanied by a problem: industrial waste. The commensurate increase in industrialization, urbanization and population growth are leading to production of enormous quantities of industrial wastes that may cause degradation in environment and health hazards. On the other hand, the desire for a healthy environment increases, which leads to the need for better ways of waste minimization, pollution prevention and better use of resources in achieving the required industrial and environmental standards....

    pdf284p qsczaxewd 25-09-2012 20 6   Download

  • Carmago et al. (1992) noted that short-term flow fluctuations, low concentration of dissolved oxygen and also the siltation of suspended inorganic matter caused by industrial discharge contribute greatly to the changes in sediment and directly affect the structure of macroinvertebrate community. The high siltation of suspended inorganic matter caused significant reductions in taxa richness and abundance of zoobenthic communities as it changes the natural structure of the substratum.

    pdf476p lulanphuong 28-03-2012 165 13   Download

  • In the United States industry is the greatest source of pollution, accounting for more than half the volume of all water pollution and for the most deadly pollutants. Some 370,000 manufacturing facilities use huge quantities of freshwater to carry away wastes of many kinds. The waste-bearing water, or effluent, is discharged into streams, lakes, or oceans, which in turn disperse the polluting substances. In its National Water Quality Inventory, reported to Congress in 1996, the U.S.

    pdf0p lulanphuong 22-03-2012 74 12   Download

  • Sodium concentration in irrigation water replaces calcium by the process of Base Exchange, therefore reduces soil permeability. Furthermore, excess salinity in groundwater used for irrigation decreased plants osmotic activity and interfere water absorption and nutrients from the soil. Nearly 5% of groundwater from the study site exceeds the desirable limit (1000 mg L-1) of chloride. The natural source of chloride is due to the weathering of phosphate mineral apatite present in granites.

    pdf136p lulanphuong 28-03-2012 52 10   Download

  • Already about two decades ago, Robert Lucas (1990) asked: “Why Doesn’t Capital Flow from Rich to Poor Countries?”, wondering why only very little capital in net term was flowing from the industrial world to developing economies. In the past years, this trend has even aggravated: Nowadays, in many cases, net capital flows have reversed and are now flowing from developing and emerging countries towards the rich world, especially towards the United States, United Kingdom, Australia and Spain.

    pdf38p enterroi 01-02-2013 23 4   Download

  • The formation of persistent organic pollutants such as polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), known collectively as dioxins, is a recognized concern for cement manufacturing. Dioxins have the potential to form if chlorine is present in the input fuel or raw materials. Formation can be repressed, however, by the high temperatures and long residence times that are standard in cement kilns (Karstensen 2008).

    pdf125p loixinloi 08-05-2013 21 4   Download

  • The ancient carving industry in Jepara is famous locally and worldwide. Its reputation has attracted many related economic activities linked to wood production and processing, especially furniture making. Today, Jepara is a typical example of what is called an ‘industrial district’ 1 in which growth in one sector (furniture manufacturing) has attracted thousands of small to medium-sized industries to the Kabupaten (administrative district)2 . These in turn have created an opportunity for further subsidiary activities and industries.

    pdf86p can_thai 10-12-2012 28 3   Download

  • Rather than construct the surface itself, sectioning uses a series of profiles, the edges of which follow lines of surface geometry. The modeling software's sectioning or contouring commands can almost instantaneously cut parallel sections through objects at designated intervals. This effectively streamlines the process of making serialized, parallel sections. Architects have experimented with sectional assemblies as a way to produce both surface and structure.

    pdf11p quynho77 13-11-2012 10 0   Download

  • Tobacco smoking mostly in the form of cigarette smoking has been accused of impairing microcirculatory system and the relevant changes in vascular formations and functions may have a negative influence on the immune and inflammatory reactions in periodontal tissues. Smokers were reported to have significantly less number of vessels in inflamed gingival tissue compared to non-smokers (Rezavandi et al. 2002). Long-term smoking has an established negative effect on the vasculature of periodontal tissues.

    pdf80p pt_1669 26-03-2012 256 91   Download

  • Industrialization has become an important factor to the development of a country’s economy, through the establishment of plants and factories. However, the waste or by-products discharged from them are severely disastrous to the environment consists various kind of contaminant which contaminate the surface water, ground water and soil. There are a number of reasons the waste are not safely treated. One of the reasons is mainly due to the lacking of highly efficient and economic treatment technology.

    pdf508p lulanphuong 30-03-2012 56 27   Download

  • Through the studies, we can deduce that most of the industrial discharge carries toxic substances. Due to the presence of high amount of toxic, carcinogen, and teratogen of metals, researchers are highly concerned with its effect on the environment and health of mankind. Rigorous investigations are currently being carried out to study the consequences of the contamination on the surface water, groundwater, and surface land due to industrial discharge.

    pdf396p lulanphuong 30-03-2012 53 20   Download

  • In consultation with many local organisations and groups the Environment Agency has produced Catchment Flood Management Plans (CFMPs) covering the main 68 catchments in England. These documents set out the strategic context for managing flood risk in a catchment, helping decision makers by identifying the policy options being adopted to manage flood risks. They also help form the position we take in our work to manage assets, watercourses, flood forecasting, and to help land use planning and development.

    pdf337p yeutinh98 26-09-2012 39 19   Download

  • This book contains chapters on nanocomposites for engineering hard materials for high performance aircraft, rocket and automobile use, using laser pulses to form metal coatings on glass and quartz, and also tungsten carbide-cobalt nanoparticles using high voltage discharges. A major section of this book is largely devoted to chapters outlining and applying analytic methods needed for studies of nanocomposites. As such, this book will serve as good resource for such analytic methods.

    pdf372p cucdai_1 19-10-2012 30 19   Download

  • The pH values will bring effects in flora and fauna nearby, change the taste of water and lead to heavy corrosion in pipe lines. High conductivity naturally indicates the presence of ionic substances dissolved in the river water. However, the result showed that 90% of the study site exceeded the data reported for non-contaminated rivers due to excessive metal ions within the water. At the site nearer to kaolin industry the conductivity is 852 times higher than the non-polluted study site. The industrial discharge also changed the hardness in river water.

    pdf76p lulanphuong 28-03-2012 55 14   Download

  • For the comparison of the share of biomass within the microbial community samples were collected on monthly basis from the Adriatic Sea (N = 110) from one coastal (ST103) and one open sea (CA009) site during 2010. Seawater samples from the Adriatic Sea sites and offshore site in the English Channel were collected by Niskin bottles through vertical profile. At four shore sites from the English Channel samples were collected manually from the surface. All samples were fixed with formaldehyde (2% final concentration), kept in the dark at 4 ºC and analyzed within two weeks.

    pdf408p yeutinh98 22-09-2012 30 11   Download

  • The environmental challenges we face today include all of the same ones that we faced more than 30 years ago at the first Earth Day celebration in 1970. In spite of the unflagging efforts of environmental professionals (and others), environmental problems remain. Many large metropolitan areas continue to be plagued by smog, beaches are periodically polluted by oil spills, and many running waters (rivers and streams) still suffer the effects of poorly treated sewage and industrial discharges....

    pdf270p 951628473 07-05-2012 40 10   Download

  • Yadav et al. (2007) studied on fertilizer industrial discharge showed that some components in the discharge may interact with each other and produce toxic to aquatic organisms. For instance, the interaction between dissolved oxygen and ammonia changed the respiratory physiology in fresh water fish. In addition, results showed that the toxicity of the effluent in fish depends on concentration and duration of exposure.

    pdf92p lulanphuong 28-03-2012 50 9   Download

  • Due to their low aqueous solubilities, the PCBs and PAHs lay on the surface of soils and waters. PCBs and PAHs adsorb strongly to the organic fraction of soils (Girvin & Scott, 1997; Hiller et al., 2011). Soils contaminated with PCBs and PAHs are transported directly or indirectly by rivers to the water reservoir and are subsequently converted into the bed sediments. Therefore, soils could be considered as the primary sinks for these organic contaminants. PCBs and PAHs are persistent in the environment, resistant to degradation process, and accumulate in food chain.

    pdf20p lulanphuong 28-03-2012 56 9   Download

  • distortion in the cell organelles and inhibit the activity of various enzymes (Valarmathi & Azariah, 2003; Yadav et al., 2007), which may greatly disturb the physiological state of the exposed living organism. The heavy metals present in the fertilizer industry discharge are usually in dissolved state which could easily be uptaken by fish and enter human food chain. There have been studies showed that metals will cause damage to the human kidney and liver even at low concentration.

    pdf33p lulanphuong 28-03-2012 58 8   Download

  • Carmago et al. (1992) found that the rivers nearer industrial discharge point have adverse impact to the environment as well as to macrobenthic communities. Toxic contaminants from surface runoff, sewage discharges and industrial discharge have caused negative impacts towards the freshwater macrobenthic communities. The presence of substance chemical such as ammonia, chlorine, cyanide, metals, PCBs, pesticides and phenols would caused a decline pattern on the number of species and changes in the species composition.

    pdf64p lulanphuong 28-03-2012 45 7   Download

Đồng bộ tài khoản