Floating bed bioreactor for deep nitrogen removal

Abstract

The invention discloses a floating bed bioreactor for deep denitrification treatment. The floating bed bioreactor comprises a reactor body, a movable cover plate, an overflow port, an annular bottom plate, an inner cylinder, a funnel tank, a water distributor, a water feeding pipe and a water discharging pipe, wherein the inner cylinder is sleeved with the reactor body; a first accommodating spaceis defined in the inner cylinder; a second accommodating space is defined between the inner cylinder and the reactor body; a filter screen is arranged at the upper part of the inner cylinder; a PHBVfiller and quartz sand are sequentially arranged in the first accommodating space from top to bottom; the second accommodating space is filled with activated carbon fibers; a movable bottom plate is arranged at the bottom end of the funnel tank; the funnel pool is filled with quartz sand; the water feeding pipe extends into the funnel tank from the movable bottom plate, extends to the first accommodating space and is connected with the water distributor; the water discharging pipe extends into the reactor body from the annular bottom plate and extends to the second accommodating space. The floating bed bioreactor is high in efficiency, low in cost and simple to operate when being used for carrying out deep denitrification treatment on low-carbon low-nitrate nitrogen reclaimed water.

Description

technical field [0001] The invention relates to the technical field of deep denitrification treatment of regenerated water, in particular, the present invention relates to a floating bed bioreactor for deep denitrification treatment; more specifically, it relates to the use of biodegradable polymers and activated carbon fiber fillers A carbon source and carrier, and a floating bed bioreactor for biointensive treatment of low-concentration nitrate nitrogen regeneration water. Background technique [0002] Reclaimed water is the main supply water source for urban rivers and lakes, and the low concentration of nitrate nitrogen in it has become the main factor affecting the water ecological environment. For regenerated water containing low carbon and low nitrate nitrogen prepared by traditional treatment processes, it is necessary to recharge rivers and lakes after deep denitrification treatment to alleviate the eutrophication trend of water bodies. During the denitrification p...

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Problems solved by technology

[0004] In summary, the existing bioreactors for deep denitrification still need to be improved

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