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Anaerobic ammonium oxidation-based two-stage artificial rapid infiltration system and its start-up method

A technology of artificial rapid percolation and anaerobic ammonium oxidation, applied in chemical instruments and methods, aerobic and anaerobic process treatment, aerobic process treatment, etc., can solve the problem of low total nitrogen removal rate and reduce the reaction process , save the reaction volume, save the effect of aeration

Active Publication Date: 2019-04-23
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] Aiming at the problem of high removal rate of ammonia nitrogen and low removal rate of total nitrogen in the traditional CRI system, the present invention provides a two-stage artificial rapid infiltration system based on anaerobic ammonium oxidation, combined with short-cut nitrification and anammox purpose of nitrogen

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  • Anaerobic ammonium oxidation-based two-stage artificial rapid infiltration system and its start-up method
  • Anaerobic ammonium oxidation-based two-stage artificial rapid infiltration system and its start-up method
  • Anaerobic ammonium oxidation-based two-stage artificial rapid infiltration system and its start-up method

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Embodiment Construction

[0017] The specific embodiments of the present invention will be described with reference to the drawings.

[0018] Such as figure 1 As shown, the two-stage manual rapid infiltration system based on anaerobic ammonia oxidation includes a distribution tank 2, a U-shaped tank 6. The outlet pipe of the distribution tank 2 is connected with a one-way valve 3 and a water pump 4; the water pump 4 is controlled by a relay 5. control;

[0019] The outlet pipe of the distribution tank 2 and the U-shaped water tank 6 are respectively connected with the facultative oxygenation section sand filter layer 8 through pipelines; the facultative oxygenation section sand filter layer 8 is equipped with an online dissolved oxygen meter 7; the bottom of the facultative oxygenation section sand filter layer 8 is gravel Layer 9, gravel layer 9 has a facultative section outlet pipe, and there is a stop valve 11 on the facultative section outlet pipe; below the gravel layer 9 is the water-proof bottom pla...

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Abstract

The invention relates to the field of sewage treatment, and particularly relates to a two-stage constructed rapid infiltration system based on anaerobic ammonia oxidation and a starting method thereof. A water outlet pipe of a water distribution basin and a U-shaped groove are connected with an anoxic-stage sand filtering layer through pipelines respectively; an on-line dissolved oxygen meter is mounted on the anoxic-stage sand filtering layer; the bottom of the anoxic-stage sand filtering layer is provided with a gravel layer; the gravel layer is provided with an anoxic-stage water outlet pipe; a water-resisting bottom plate is arranged below the gravel layer; an anaerobic-stage sand filtering layer is arranged below the water-resisting bottom plate; a cavity is reserved between the anaerobic-stage sand filtering layer and the water-resisting bottom plate; the cavity is provided with an exhaust hole; the cavity is also provided with an anaerobic-stage water inlet; the anaerobic-stage water inlet is connected with an anoxic-stage water outlet pipeline; the bottom of the anaerobic-stage sand filtering layer is provided with a lower gravel layer; the lower gravel layer is connected with an anaerobic-stage high water discharge hole; a base is arranged below the lower gravel layer. By using the rapid infiltration system, the subsequent oxidization of nitrite nitrogen to nitrate nitrogen is omitted; an aeration rate is saved; the energy consumption is decreased; organic matters in sewage can be furthest recycled for producing methane; a reaction volume is also reduced.

Description

Technical field [0001] The invention relates to the field of sewage treatment, in particular to a two-stage artificial rapid infiltration system based on anaerobic ammonia oxidation and a starting method thereof. Background technique [0002] Sewage treatment technology for domestic sewage and contaminated surface water in small cities and towns—Constructed Rapid Infiltration System (CRI system) is a new type of rapid infiltration system (RI) established by Professor Zhong Zuoshen from China University of Geosciences Ecological wastewater treatment methods. It consists of a grid tank, a pre-sedimentation tank, a rapid infiltration tank and a water outlet system. The rapid infiltration tank is filled with a certain height of artificial filter material, and the sewage treatment is carried out in an alternate dry and wet operation mode. The hydraulic load cycle is short, that is, frequent flooding and frequent drying, the hydraulic load is as follows. The unique environment of alt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/04
CPCC02F3/046C02F3/307C02F2203/006Y02W10/10
Inventor 许文来唐敏简悦王璟黄爱民刘雅雪
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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