Device and method for synchronous denitrifying phosphorus removal and phosphorus recovery
A technology for denitrifying phosphorus removal and phosphorus recovery is applied in the field of devices for simultaneous phosphorus recovery by denitrification and phosphorus removal.
Active Publication Date: 2015-08-05
BEIJING UNIV OF TECH
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Problems solved by technology
The main challenge in recovering phosphorus from domestic sewage is the low phosphorus content (generally <10mg / L)
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[0019] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail: as figure 1 As shown, a denitrification phosphorus removal device for synchronous phosphorus recovery: there are urban sewage raw water tank (1), nitrification reactor nitrification reactor (2), phosphorus recovery water tank (3), denitrification phosphorus removal and phosphorus recovery reaction Device (4), dosing box (5); It is characterized in that, urban sewage raw water tank (1) is connected with nitrification reactor nitrification reactor (2) by water inlet pump (2.1); Nitrification reactor nitrification reactor (2) ) is connected to the denitrification phosphorus removal and phosphorus recovery reactor (4) through the drainage pump (2.6); the treated water of the denitrification phosphorus removal and phosphorus recovery reactor (4) is discharged through the drain valve II (4.8); The phosphorus and phosphorus recovery reactor (4) is connected ...
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Abstract
The invention discloses a device and method for synchronous denitrifying phosphorus removal and phosphorus recovery. The device comprises a raw municipal sewage tank, a nitrifying reactor, a phosphorus recovery water tank, a denitrifying phosphorus removal and phosphorus recovery reactor and a chemical adding tank. According to the method, municipal sewage is firstly fed into the nitrifying reactor for denitrification and nitrification; then, the sewage enters the denitrifying phosphorus removal and phosphorus recovery reactor for simultaneous phosphorus and nitrogen removal; then phosphorus is fully absorbed in an aerobic zone and the sewage reaches the discharge standard and is discharged; then, circulating water in the phosphorus recovery water tank and a carbon source in the chemical adding tank enter the denitrifying phosphorus removal and phosphorus recovery reactor, microbes take the provided carbon source to store PHAs and release a great deal of phosphorus; and treatment water containing a great deal of phosphorus enters the phosphorus recovery water tank again. The method is capable of realizing phosphorus and nitrogen removal and phosphorus recovery; sewage is treated and resources are recovered.
Description
Technical field: [0001] The invention relates to a device and method for synchronously recovering phosphorus by denitrification and phosphorus removal, and belongs to the field of sewage biological treatment technology and resource recovery. Background technique: [0002] Nitrogen and phosphorus are the main nutrients that cause eutrophication in rivers, lakes, oceans and other water bodies, which pose a potential threat to drinking water and ecology. With the increasing eutrophication of water bodies, biological nitrogen and phosphorus removal processes have been widely studied and applied. Denitrification and phosphorus removal technology has become a research hotspot because of its advantages such as simultaneous nitrogen and phosphorus removal, reduced carbon source and energy demand, and low sludge production. The principle of this technology is to combine the two processes of denitrification and phosphorus removal into one, and the denitrification and phosphorus remov...
Claims
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IPC IPC(8): C02F3/30
Inventor 王淑莹吉建涛委燕何岳兰王梅香彭永臻
Owner BEIJING UNIV OF TECH