Sequencing batch reaction process and device for single-step denitrification without moving parts

Abstract

The invention discloses a sequencing batch reaction process and device for single-step denitrification without moving parts. The device comprises a reactor main body, a water inlet device, a water outlet device, a blower device, a sludge discharge device and a control device, wherein an aeration device is arranged at the bottom of the reactor main body, a fixed water collecting device is arrangedat the upper part of the reactor main body, and a dissolved oxygen or ORP sensor and an ammonia nitrogen sensor are arranged below the liquid level in the reactor main body; the water inlet device ispositioned at the lower part of the reactor main body; the water outlet device is positioned on one side of the middle of the reactor main body and connected with the water collecting device; the blower device is positioned at the top of the reactor main body and connected with the aeration device. The equipment is highly simplified, a mechanical stirring device and a water decanter of a traditional SBR are omitted, no moving part is arranged in the tank, maintenance is easy, and the failure rate is low; the device has good regulation capability, can effectively remove organic matters, especially ammonia nitrogen and total nitrogen, and can be used for centralized and dispersed treatment of polluted water such as domestic sewage, non-point source pollution, organic wastewater and the like.

Description

technical field [0001] The invention belongs to the technical field of resources and environment, and more specifically relates to a single-step denitrification sequence batch reaction process and device without mechanical stirring, decanter, and no moving parts in the pool, which is suitable for urban and rural domestic sewage, various Treatment of similar organic wastewater, mixed flow sewage and black and odorous water. Background technique [0002] Traditional sewage treatment processes include three categories: activated sludge process, membrane process and natural treatment. The former two have high processing load and less land occupation, but have large amount of equipment, complex maintenance, low adaptability to impact load, high energy consumption, and often the quality of effluent water declines during peak load or a period of time after low peak load; The latter has low energy consumption and a certain load resistance, but occupies a large area and has low proc...

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Problems solved by technology

The former two have high processing load and less land occupation, but have large amount of equipment, complex maintenance, low adaptability to impact load, high energy consumption, and often the quality of effluent water declines during peak load or a period of time after low peak load; The latter has low energy consumption and a certain load resistance, but occupies a large area and has low processing load

[0003] However, there are a large number of places that need to be treated in the current situation. The water quality and water volume change greatly, and the land is limited. Especially for the protection of water quality, it is often necessary to have strict limits on pollutants such as BOD, ammonia nitrogen, and total nitrogen, and the strength of on-site personnel is limited. , these demands will promote the wide application of single-step denitrification sequencing batch reaction technology and devices without mechanical stirring, decanter, and no moving parts in the pool

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