Efficient self-circulation biological denitrification device and working method therefor

A self-circulating high-efficiency biological denitrification device includes a tank body, where an aerobic zone, an anoxic zone, a settling tank water distribution zone, a sludge zone, a sludge-water separation zone, and an effluent flow stabilization zone are arranged from bottom to top in the tan...

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Bibliographic Details
Main Authors Zhou, Bibo, Cai, Jianming
Format Patent
LanguageEnglish
Published 10.01.2023
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:A self-circulating high-efficiency biological denitrification device includes a tank body, where an aerobic zone, an anoxic zone, a settling tank water distribution zone, a sludge zone, a sludge-water separation zone, and an effluent flow stabilization zone are arranged from bottom to top in the tank body; the settling tank water distribution zone includes a settling tank influent guide cylinder, and a circular butterfly jet water distributor is arranged between the settling tank influent guide cylinder and the aerobic zone; the settling tank influent guide cylinder is connected to a guide plate arranged in the aerobic zone, the anaerobic zone, and the sludge zone; the guide plate includes three sections; a nitrification liquid return gap and a sludge return gap are formed; a bottom of the aerobic zone is provided with an aerator; the aerator is connected to an air inlet pipe located outside the tank body.
Bibliography:Application Number: US202017638922