Some problems associated with brewery and dairy water discharges

Autor: Tariq A. Mahmoud, Maesoon N. Khayat, So'ad A. Abbawi
Jazyk: angličtina
Rok vydání: 1986
Předmět:
Zdroj: Environment International, Vol 12, Iss 5, Pp 563-569 (1986)
ISSN: 0160-4120
Popis: Dairy and brewery industries are considered to be major pollution sources of Tigris River in Mosul city in Iraq. A daily flow of 3000 m3 of raw waste of these industries which carries a considerable level of solids, organic load, and other pollutants is discharged without any treatment into Tigris River through two ponds. During flood season the washout of the wastewater of these ponds causes a sudden local drop in the dissolved oxygen level of the river water; consequently the river suffers from a great damage demonstrated normally by mass fish kill. The waste also has an adverse effect on the agricultural productivity of the adjacent land. No study has been made previously to assess the impact of these wastes on the quality of the river water. In this study a quantitative and qualitative evaluation was made to determine the characteristics of the wastewater discharged throughout the year by these two industries. The change in the waste strength due to mixing and ponding prior to its final disposal to the river was studied. Additionally an attempt was made to define the change in the river water quality due to the industrial discharge.
Databáze: OpenAIRE