Definition of effluent in English:



  • Liquid waste or sewage discharged into a river or the sea.

    ‘the bay was contaminated with the effluent from an industrial plant’
    • ‘Most rivers - or what's left of them - are foul reservoirs of industrial effluents and sewage.’
    • ‘It emerged last night that chemically treated human effluent was discharged at the site yesterday afternoon.’
    • ‘However, there were occasions when because of the poor quality industrial effluents being discharged into the river the water could carry no oxygen and it was impossible for fish to survive.’
    • ‘Pollution of water bodies by industrial effluents and civic waste is a crime on humanity and can no longer be ignored by the enforcing authorities.’
    • ‘Ground water is polluted by industrial effluent and human waste.’
    • ‘Treated effluent is still discharged into Maguires Creek, the Richmond River and the Pacific Ocean.’
    • ‘If effluent enters the river, bacteria use this food to multiply.’
    • ‘He said that the company, which admitted one count of discharging effluent, took environmental issues seriously.’
    • ‘Late this season several thousand juvenile salmon died on an upper stretch of the Moy as a result of a discharge of effluent.’
    • ‘But we can't go on trying to deal with effluent and waste and toxins without putting in resources.’
    • ‘This dumping of industrial effluents into the rivers will affect the general health of livestock and human beings dependant on water from these rivers.’
    • ‘If the farm allows effluent into the river, then the fishery suffers due to increased costs of water purification.’
    • ‘Farmers are now aware that silage effluent is highly polluting.’
    • ‘We are well aware that to discharge untreated effluent into a water course is illegal and unacceptable.’
    • ‘The agency said there were high levels of nutrients, particularly phosphate and nitrate, which entered the river through sewage effluents and agricultural activities.’
    • ‘There were also 61 oil spills and 54 leaks of minerals and trade effluent.’
    • ‘The effluent contains a variety of industrial wastes but no estimate of their pollutional load is available.’
    • ‘Something similar happened when pig-farm effluent got into a river in Carolina in the US.’
    • ‘Typical point sources of water pollution are manufacturing effluent and municipal waste.’
    • ‘The indiscriminate dumping of industrial effluents and civic waste, in combination with falling water levels have taken their toll.’
    waste, liquid waste, sewage, effluvium, outflow, discharge, emission
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Late Middle English (in the adjective sense ‘flowing out’): from Latin effluent- ‘flowing out’, from the verb effluere (see effluence). The noun dates from the mid 19th century.