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Citrus processing waste water treatment

Journal Article:

Abstract

The process utilizes biological treatment to decompose organic matter and decreases the COD to a value of 230 ppm, using 161 of air per 1 of treated waste water for a contact time of 2.5 h. Ozone is used subsequently for further purification of the waste water by destroying refractory organics. This reduces the COD to a value of 40 ppm, and consequently also lowers the BOD. Ozone also effectively removed the yellow-brown colour due to humic substances in dissolved or colloidal form; their oxidation leaves the water sparkling. Iron and manganese are also eliminated.
Publication Date:
Feb 01, 1988
Product Type:
Journal Article
Reference Number:
DE-88-008947; EDB-88-133729
Resource Relation:
Journal Name: Chem.-Ing.-Tech.; (Germany, Federal Republic of); Journal Volume: 60:2
Subject:
54 ENVIRONMENTAL SCIENCES; 09 BIOMASS FUELS; WASTE WATER; ACTIVATED SLUDGE PROCESS; WATER TREATMENT; BIOCHEMICAL OXYGEN DEMAND; EGYPTIAN ARAB REPUBLIC; ENVIRONMENTAL EFFECTS; FLOWSHEETS; FOOD INDUSTRY; OZONIZATION; SUSPENSIONS; AFRICA; CHEMICAL REACTIONS; DEVELOPING COUNTRIES; DIAGRAMS; DISPERSIONS; HYDROGEN COMPOUNDS; INDUSTRY; LIQUID WASTES; MANAGEMENT; OXYGEN COMPOUNDS; PROCESSING; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; WATER; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)
OSTI ID:
7192364
Research Organizations:
National Research Centre, Cairo (Egypt). Pilot Plant Lab.
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: CITEA
Submitting Site:
DE
Size:
Pages: 128-130
Announcement Date:

Journal Article:

Citation Formats

Hawash, S, Hafez, A J, and El-Diwani, G. Citrus processing waste water treatment. Germany: N. p., 1988. Web.
Hawash, S, Hafez, A J, & El-Diwani, G. Citrus processing waste water treatment. Germany.
Hawash, S, Hafez, A J, and El-Diwani, G. 1988. "Citrus processing waste water treatment." Germany.
@misc{etde_7192364,
title = {Citrus processing waste water treatment}
author = {Hawash, S, Hafez, A J, and El-Diwani, G}
abstractNote = {The process utilizes biological treatment to decompose organic matter and decreases the COD to a value of 230 ppm, using 161 of air per 1 of treated waste water for a contact time of 2.5 h. Ozone is used subsequently for further purification of the waste water by destroying refractory organics. This reduces the COD to a value of 40 ppm, and consequently also lowers the BOD. Ozone also effectively removed the yellow-brown colour due to humic substances in dissolved or colloidal form; their oxidation leaves the water sparkling. Iron and manganese are also eliminated.}
journal = {Chem.-Ing.-Tech.; (Germany, Federal Republic of)}
volume = {60:2}
journal type = {AC}
place = {Germany}
year = {1988}
month = {Feb}
}