Removing cyanides from the wastemakers of the by-product coke industry

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6417669

Komyakova, E V; Goleva, O N

The concentration of cyanides in the wastewaters of coke by-product industry which are admitted for biochemical treatment depends on the composition of the charge, the coking system, and the chemical coking products recovery technology, and varies between 20 and 180 mg/l at various plants (1-3). After biochemical cleaning, the wastewaters of the Eastern and Central By-Product Coking Plants usually contain more than 3 mg/l cyanides. Decreasing the amount of cyanides in the wastewaters in treatment at a biochemical treatment plant is realized by: producing iron hexacyane ferrates using a reactive flotational separation of oils (FeSO/sub 4/ is used as reagent); desorption with sediment, flotation, neutralization, and biochemical oxidation in air tanks; chemical oxidation using the oxygen in the air which is supplied for aeration, and biochemical oxidation.

• Research Organization: Eastern Scientific Research Institute of Coal Chemistry
• OSTI ID: 6417669
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 8; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
ASIA
BIOCHEMISTRY
BIODEGRADATION
BY-PRODUCTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHEMISTRY
COKING PLANTS
CYANIDES
DECOMPOSITION
EASTERN EUROPE
EUROPE
FLOTATION
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
IRON COMPOUNDS
IRON SULFATES
LIQUID WASTES
MANAGEMENT
OXIDATION
OXYGEN COMPOUNDS
PH VALUE
PROCESSING
PURIFICATION
REMOVAL
SEDIMENTATION
SEPARATION PROCESSES
SULFATES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
USSR
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER TREATMENT