Water pollution is the contamination of water bodies (e.g. lakes‚ rivers‚ oceans‚ aquifers and groundwater). Water pollution occurs when pollutantsare directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution affects plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual speciesand populations‚ but also to the natural biological communities. Introduction[edit]
Premium Water pollution Sewage treatment Wastewater
between rich and poor as well as urban and rural areas‚ as well as water scarcity‚ contamination and pollution. Much has been achieved during the past decades in terms of increased access to services‚ increased municipal wastewater treatment‚ the creation of water and wastewater utilities that are legally and financially separated from local governments‚ and increasing cost recovery as part of the transformation of the Chinese economy to a more market-oriented system. The government has quadrupled
Premium Water Water supply Water resources
Different types of wastewaters Domestic wastewater Domestic effluents are generated from activities such as bathing‚ laundry‚ cleaning‚ cooking‚ washing‚ and other kitchen activities. This contains a large amount of organic waste with suspended solids and coliforms. Calculations made based on available data show that half the organic waste is from the domestic sector (PEM‚ 2003). As stated in the EMB report‚ domestic wastewater discharges contribute highest to the BOD load as the lack of sewage
Premium Waste Water Wastewater
is increasing the demand for food and clean water. Our freshwater supplies are diminishing and at the same time our wastewater is increasing. Currently we cannot sustain our own development on a global scale. The increase in flow and organic loading of our wastewaters‚ means there is a need to treat water more efficiently. Stringent environmental laws regarding drinking and wastewater demand higher qulaity and more sustainable treatment technologies. Nutrient enrichment is a common factor affecting
Premium Sewage treatment Wastewater Water pollution
------------------------------------------------- Industrial wastewater treatment Industrial wastewater treatment covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re-use. Most industries produce some wet waste although recent trends in the developed world have been to minimise such production or recycle such waste within the production process. However
Premium Sewage treatment Wastewater
pharmaceutical industries‚ tannery‚ and Kraft bleaching industries‚ etc.) are considered a wide variety of organic pollutants introduced into the natural water resources or wastewater treatment systems. One of the main sources with severe pollution problems worldwide is the textile industry and its dye-containing wastewaters (i.e. 10‚000 different textile dyes with an estimated annual production of 7.105 metric tonnes are commercially available worldwide; 30% of these dyes are used in excess of
Premium Water pollution Sewage treatment Textile manufacturing
them into the waste stream is extremely important to future generations. The advancement of all-inclusive pollution avoidance and lessening program that focuses on human population stabilization‚ residential‚ commercial and industrial solid waste‚ wastewater‚ and recycling is the answer. I will analyze the advantages and disadvantages of such programs‚ including its long-term viability‚ its economic feasibility and the political process as well as ways to develop sustainable policies. Human population
Premium Sewage treatment Waste Waste management
Sludge from Wastewater Treatment: A Natural Fertilizer for Pechay (Brassica rapa chinensis) Introduction Background of the Study Pechay (Brassica rapa chinensis) could grow for almost 15-20 cm tall and have wide leaves (Siemonsma & Piluek‚ 1994). Pechay would grow under any climate and could be produced throughout the year specially when the provided soil is rich in organic fertilizer and with good drainage. It could be harvested as they reached the desired size (Cultural Directions for Phil
Premium Wastewater Fertilizer Sewage treatment
Waste Water Lifting Point Lift Stations‚ or Pump Stations are known as the structure that are used to "lift" liquid uphill - against gravity. They are the essential component of a wastewater collection system which takes wastewater from residents and businesses in a community and pumps it to a sewage treatment plant. They are equally essential in moving "potable" water from a water treatment plant up to one or more reservoirs‚ so that clean water can flow by gravity to the community. Waste water
Premium Wastewater Sewage treatment Sewage
Recycled water- is former wastewater that is treated to remove solids and certain impurities‚ and used in sustainable landscaping irrigation or to recharge groundwater aquifers. The purpose of these processes is sustainability and water conservation‚ rather than discharging the treated water to surface waters such as rivers and oceans. Undoubtedly‚ recycling or re-using water can offer very significant economies. One of the greatest obstacles is the fact that much of the wastewater is disposed of through
Premium Sewage treatment Wastewater Water