Study of the operation of a neutralization plant intended to prepare waste water for reuse in the production of phosphorus fertilizers
In the production of phosphorus fertilizers, fluorine-containing waste waters are formed mainly in production of wet-process phosphoric acid (WPA). For a typical WPA plant processing Karatau phosphorites they are produced in the amount of 350-400 m/sup 3//hr. In order to eliminate the discharge of fluorine-containing waste waters into rivers, lakes and streams, they are treated with milk of lime and clarified in a neutralization plant, and then reused in the main plants. The five years of experience at the Almalyk Chemical Works (ACW), where zero-waste production of WPA and ammophos according to this principle was first accomplished in the branch, have demonstrated the validity of this direction. The basis of this study consists of the results of a survey of this plant carried out by NIUIF and its Voskresensk branch in 1975 and also the experience with similar plants at the Samarkand superphosphate works, the Balakovsk and Cherepovetsk chemical plants and the Voskresensk Minudobreniya PA.
- OSTI ID:
- 6972168
- Journal Information:
- Sov. Chem. Ind. (Engl. Transl.); (United States), Journal Name: Sov. Chem. Ind. (Engl. Transl.); (United States) Vol. 15:4; ISSN SVCIA
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
DOCUMENT TYPES
ELEMENTS
FERTILIZER INDUSTRY
FLUORINE
HALOGENS
HYDROGEN COMPOUNDS
INDUSTRY
LIQUID WASTES
NONMETALS
OXYGEN COMPOUNDS
REVIEWS
SURVEYS
WASTE PRODUCT UTILIZATION
WASTE WATER
WASTES
WATER
WATER TREATMENT