Wastewater - wikipedia Wastewater Greywater ( a type of wastewater ) in a settling tank Wastewater ( or waste water ) is any water that has been affected by human use. Wastewater is `` used water from any combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and any sewer inflow or sewer infiltration ''. Therefore, wastewater is a byproduct of domestic, industrial, commercial or agricultural activities. The characteristics of wastewater vary depending on the source. Types of wastewater include : domestic wastewater from households, municipal wastewater from communities ( also called sewage ) or industrial wastewater from industrial activities. Wastewater can contain physical, chemical and biological pollutants. Households may produce wastewater from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. Households that use dry toilets produce less wastewater than those that use flush toilets. Wastewater may be conveyed in a sanitary sewer which conveys only sewage. Alternatively, it can be transported in a combined sewer which includes stormwater runoff and industrial wastewater. After treatment at a wastewater treatment plant, the treated wastewater ( also called effluent ) is discharged to a receiving water body. The terms `` wastewater reuse '' or `` water reclamation '' apply if the treated waste is used for another purpose. Wastewater that is discharged to the environment without suitable treatment causes water pollution. In developing countries and in rural areas with low population densities, wastewater is often treated by various on - site sanitation systems and not conveyed in sewers. These systems include septic tanks connected to drain fields, on - site sewage systems ( OSS ), vermifilter systems and many more. Contents 1 Terminology 2 Sources 3 Pollutants 3.1 Chemical or physical pollutants 3.2 Biological pollutants 3.3 Quality indicators 4 Treatment 5 Disposal 6 Reuse 7 Legislation 7.1 Australia 7.2 Nigeria 7.3 Philippines 7.4 United States 8 See also 9 References Terminology The overarching term sanitation includes the management of wastewater, human excreta, solid waste and stormwater. The term sewerage refers to the physical infrastructure required to transport and treat wastewater. Sources Sources of wastewater include the following domestic or household activities : Human excreta ( feces and urine ) often mixed with used toilet paper or wipes ; this is known as blackwater if it is collected with flush toilets Washing water ( personal, clothes, floors, dishes, cars, etc. ), also known as greywater or sullage Surplus manufactured liquids from domestic sources ( drinks, cooking oil, pesticides, lubricating oil, paint, cleaning liquids, etc. ) Activities producing industrial wastewater : Industrial site drainage ( silt, sand, alkali, oil, chemical residues ) ; Industrial cooling waters ( biocides, heat, slimes, silt ) Industrial processing waters Organic or biodegradable waste, including waste from hospitals, abattoirs, creameries, and food factories. Organic or non bio-degradable waste that is difficult - to - treat from pharmaceutical or pesticide manufacturing Extreme pH waste from acid and alkali manufacturing Toxic waste from metal plating, cyanide production, pesticide manufacturing, etc. Solids and emulsions from paper mills, factories producing lubricants or hydraulic oils, foodstuffs, etc. Water used in hydraulic fracturing Produced water from oil & natural gas production Other activities or events : Urban runoff from highways, roads, carparks, roofs, sidewalks / pavements ( contains oils, animal feces, litter, gasoline / petrol, diesel or rubber residues from tires, soapscum, metals from vehicle exhausts, de-icing agents, herbicides and pesticides from gardens, etc. ) Agricultural pollution, direct and diffuse Wastewater can be diluted or mixed with other types of water by the following mechanisms : Seawater ingress ( high volumes of salt and microbes ) Direct ingress of river water Rainfall collected on roofs, yards, hard - standings, etc. ( generally clean with traces of oils and fuel ) Groundwater infiltrated into sewage Mixing with other types of wastewater or fecal sludge Pollutants The composition of wastewater varies widely. This is a partial list of pollutants that may be contained in wastewater : Chemical or physical pollutants Heavy metals, including mercury, lead, and chromium Organic particles such as feces, hairs, food, vomit, paper fibers, plant material, humus, etc. ; Soluble organic material such as urea, fruit sugars, soluble proteins, drugs, pharmaceuticals, etc. ; Inorganic particles such as sand, grit, metal particles, ceramics, etc. ; Soluble inorganic material such as ammonia, road - salt, sea - salt, cyanide, hydrogen sulfide, thiocyanates, thiosulfates, etc. ; Macro-solids such as sanitary napkins, nappies / diapers, condoms, needles, children 's toys, dead animals or plants, etc. ; Gases such as hydrogen sulfide, carbon dioxide, methane, etc. ; Emulsions such as paints, adhesives, mayonnaise, hair colorants, emulsified oils, etc. ; Toxins such as pesticides, poisons, herbicides, etc. Pharmaceuticals and hormones and other hazardous substances Thermal pollution from power stations and industrial manufacturers Biological pollutants If the wastewater contains human feces, as is the case for sewage, then it may also contain pathogens of one of the four types : Bacteria ( for example Salmonella, Shigella, Campylobacter, Vibrio cholerae ), Viruses ( for example hepatitis A, rotavirus, enteroviruses ), Protozoa ( for example Entamoeba histolytica, Giardia lamblia, Cryptosporidium parvum ) and Parasites such as helminths and their eggs ( e.g. Ascaris ( roundworm ), Ancylostoma ( hookworm ), Trichuris ( whipworm ) ) ; It can also contain non-pathogenic bacteria and animals such as insects, arthropods, small fish. Quality indicators Main article : Wastewater quality indicators Since all natural waterways contain bacteria and nutrients, almost any waste compounds introduced into such waterways will initiate biochemical reactions ( such as shown above ). Those biochemical reactions create what is measured in the laboratory as the biochemical oxygen demand ( BOD ). Such chemicals are also liable to be broken down using strong oxidizing agents and these chemical reactions create what is measured in the laboratory as the chemical oxygen demand ( COD ). Both the BOD and COD tests are a measure of the relative oxygen - depletion effect of a waste contaminant. Both have been widely adopted as a measure of pollution effect. The BOD test measures the oxygen demand of biodegradable pollutants whereas the COD test measures the oxygen demand of oxidizable pollutants. Any oxidizable material present in an aerobic natural waterway or in an industrial wastewater will be oxidized both by biochemical ( bacterial ) or chemical processes. The result is that the oxygen content of the water will be decreased. Treatment Main article : Wastewater treatment At a global level, around 80 % of wastewater produced is discharged into the environment untreated, causing widespread water pollution. There are numerous processes that can be used to clean up wastewaters depending on the type and extent of contamination. Wastewater can be treated in wastewater treatment plants which include physical, chemical and biological treatment processes. Municipal wastewater is treated in sewage treatment plants ( which may also be referred to as wastewater treatment plants ). Agricultural wastewater may be treated in agricultural wastewater treatment processes, whereas industrial wastewater is treated in industrial wastewater treatment processes. For municipal wastewater the use of septic tanks and other On - Site Sewage Facilities ( OSSF ) is widespread in some rural areas, for example serving up to 20 percent of the homes in the U.S. One type of aerobic treatment system is the activated sludge process, based on the maintenance and recirculation of a complex biomass composed of micro-organisms able to absorb and adsorb the organic matter carried in the wastewater. Anaerobic wastewater treatment processes ( UASB, EGSB ) are also widely applied in the treatment of industrial wastewaters and biological sludge. Some wastewater may be highly treated and reused as reclaimed water. Constructed wetlands are also being used. Disposal Industrial wastewater effluent with neutralized pH from tailing runoff in Peru. In some urban areas, municipal wastewater is carried separately in sanitary sewers and runoff from streets is carried in storm drains. Access to either of these systems is typically through a manhole. During high precipitation periods a combined sewer system may experience a combined sewer overflow event, which forces untreated sewage to flow directly to receiving waters. This can pose a serious threat to public health and the surrounding environment. Sewage may drain directly into major watersheds with minimal or no treatment but this usually has serious impacts on the quality of an environment and on the health of people. Pathogens can cause a variety of illnesses. Some chemicals pose risks even at very low concentrations and can remain a threat for long periods of time because of bioaccumulation in animal or human tissue. Wastewater from industrial activities may be pumped underground through an injection well. Wastewater injection has been linked to Induced seismicity. Reuse Main article : Reclaimed water Treated wastewater can be reused in industry ( for example in cooling towers ), in artificial recharge of aquifers, in agriculture and in the rehabilitation of natural ecosystems ( for example in wetlands ). In rarer cases it is also used to augment drinking water supplies. There are several technologies used to treat wastewater for reuse. A combination of these technologies can meet strict treatment standards and make sure that the processed water is hygienically safe, meaning free from bacteria and viruses. The following are some of the typical technologies : Ozonation, ultrafiltration, aerobic treatment ( membrane bioreactor ), forward osmosis, reverse osmosis, advanced oxidation. Some water demanding activities do not require high grade water. In this case, wastewater can be reused with little or no treatment. One example of this scenario is in the domestic environment where toilets can be flushed using greywater from baths and showers with little or no treatment. Irrigation with recycled wastewater can also serve to fertilize plants if it contains nutrients, such as nitrogen, phosphorus and potassium. In developing countries, agriculture is using untreated wastewater for irrigation - often in an unsafe manner. There can be significant health hazards related to using untreated wastewater in agriculture. The World Health Organization developed guidelines for safe use of wastewater in 2006. Legislation Further information : Reclaimed water § Guidelines and regulations Australia As part of the Environmental Protection Act 1994, the Environmental Protection ( Water ) Policy 2009 is responsible for the water management of Queensland, Australia. Nigeria In Nigeria, the Water Resources Act of 1993 is the law responsible for all kinds of water management. Philippines In the Philippines, Republic Act 9275, otherwise known as the Philippine Clean Water Act of 2004, is the governing law on wastewater management. It states that it is the country 's policy to protect, preserve and revive the quality of its fresh, brackish and marine waters, for which wastewater management plays a particular role. United States The Clean Water Act is the primary federal law in the United States governing water pollution in surface waters. Groundwater protection provisions are included in the Safe Drinking Water Act, Resource Conservation and Recovery Act, and the Superfund act. See also Water portal Wikimedia Commons has media related to Wastewater. Fecal sludge management List of waste - water treatment technologies Sanitation Waste management Water management Water pollution References Jump up ^ Tilley, E., Ulrich, L., Lüthi, C., Reymond, Ph., Zurbrügg, C. Compendium of Sanitation Systems and Technologies -- ( 2nd Revised Edition ). Swiss Federal Institute of Aquatic Science and Technology ( Eawag ), Duebendorf, Switzerland. p. 175. ISBN 978 - 3 - 906484 - 57 - 0. Archived from the original on 8 April 2016. CS1 maint : Multiple names : authors list ( link ) Jump up ^ World Health Organization ( 2006 ). Guidelines for the safe use of wastewater, excreta, and greywater. World Health Organization. p. 31. ISBN 9241546859. OCLC 71253096. Jump up ^ Andersson, K., Rosemarin, A., Lamizana, B., Kvarnström, E., McConville, J., Seidu, R., Dickin, S. and Trimmer, C. ( 2016 ). Sanitation, Wastewater Management and Sustainability : from Waste Disposal to Resource Recovery Archived 1 June 2017 at the Wayback Machine... Nairobi and Stockholm : United Nations Environment Programme and Stockholm Environment Institute. ISBN 978 - 92 - 807 - 3488 - 1, p. 56 Jump up ^ WWAP ( United Nations World Water Assessment Programme ) ( 2017 ). The United Nations World Water Development Report 2017. Wastewater : The Untapped Resource. Paris. ISBN 978 - 92 - 3 - 100201 - 4. Archived from the original on 8 April 2017. Jump up ^ U.S. Environmental Protection Agency, Washington, D.C. ( 2008 ). `` Septic Systems Fact Sheet. '' Archived 12 April 2013 at the Wayback Machine. EPA publication no. 832 - F - 08 - 057. Jump up ^ van der Baan, Mirko ; Calixto, Frank J. ( 2017 - 07 - 01 ). `` Human - induced seismicity and large - scale hydrocarbon production in the USA and Canada ''. Geochemistry, Geophysics, Geosystems. 18 ( 7 ) : 2467 -- 2485. doi : 10.1002 / 2017gc006915. ISSN 1525 - 2027. Jump up ^ WHO ( 2006 ). WHO Guidelines for the Safe Use of Wastewater, Excreta and Greywater -- Volume IV : Excreta and greywater use in agriculture Archived 17 October 2014 at the Wayback Machine... World Health Organization ( WHO ), Geneva, Switzerland Jump up ^ `` Environmental policy and legislation ''. Department of Environmental and Heritage Protection. Queensland Government. Archived from the original on 20 October 2017. Retrieved 20 October 2017. ^ Jump up to : `` An Act Providing For A Comprehensive Water Quality Management And For Other Purposes ''. The LawPhil Project. Archived from the original on 21 September 2016. Retrieved 30 September 2016. Jump up ^ United States. Clean Water Act. 33 U.S.C. § 1251 et seq. Pub. L. 92 - 500 Archived 16 May 2013 at the Wayback Machine., 18 October 1972 ; as amended. Wastewater Sources Acid mine drainage Ballast water Bathroom Blackwater ( coal ) Blackwater ( waste ) Boiler blowdown Brine Combined sewer Cooling tower Cooling water Fecal sludge Greywater Infiltration / Inflow Industrial effluent Ion exchange Leachate Manure Papermaking Produced water Return flow Reverse osmosis Sanitary sewer Septage Sewage Sewage sludge Toilet Urban runoff Quality indicators Adsorbable organic halides Biochemical oxygen demand Chemical oxygen demand Coliform index Dissolved oxygen Heavy metals pH Salinity Temperature Total dissolved solids Total suspended solids Turbidity Treatment options Activated sludge Aerated lagoon Agricultural wastewater treatment API oil - water separator Carbon filtration Chlorination Clarifier Constructed wetland Decentralized wastewater system Extended aeration Facultative lagoon Fecal sludge management Filtration Imhoff tank Industrial wastewater treatment Ion exchange Membrane bioreactor Reverse osmosis Rotating biological contactor Secondary treatment Sedimentation Septic tank Settling basin Sewage sludge treatment Sewage treatment Sewer mining Stabilization pond Trickling filter Ultraviolet germicidal irradiation UASB Vermifilter Wastewater treatment plant Disposal options Combined sewer Evaporation pond Groundwater recharge Infiltration basin Injection well Irrigation Marine dumping Marine outfall Reclaimed water Sanitary sewer Septic drain field Sewage farm Storm drain Surface runoff Vacuum sewer Biosolids, waste and waste management Major types Agricultural wastewater Biodegradable waste Brown waste Chemical waste Construction waste Demolition waste Electronic waste by country Food waste Green waste Hazardous waste Heat waste Industrial waste Litter Marine debris Biomedical waste Mining waste Municipal solid waste Open defecation Post-consumer waste Radioactive waste Scrap metal Sewage Toxic waste Wastewater Processes Anaerobic digestion Biodegradation Composting Garden waste dumping Illegal dumping Incineration Landfill Landfill mining Mechanical biological treatment Mechanical sorting Open dump Photodegradation Recycling Resource recovery Sewage treatment Waste collection Waste picking Waste sorting Waste trade Waste treatment Waste - 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Question: waste water that contain solid and liquid excreta refers to
Answer: sewage