CN103880182A - Aerobic nitration biofilter-anoxic denitrification biofilter denitrification system - Google Patents

Aerobic nitration biofilter-anoxic denitrification biofilter denitrification system Download PDF

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CN103880182A
CN103880182A CN201410107365.4A CN201410107365A CN103880182A CN 103880182 A CN103880182 A CN 103880182A CN 201410107365 A CN201410107365 A CN 201410107365A CN 103880182 A CN103880182 A CN 103880182A
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biological filter
denitrification
water
aerobic nitrification
biofilter
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CN201410107365.4A
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CN103880182B (en
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郑俊
张德伟
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安徽华骐环保科技股份有限公司
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Abstract

The invention discloses an aerobic nitration biofilter-anoxic denitrification biofilter denitrification system. The denitrification system is characterized by comprising an aerobic nitration biofilter and an anoxic denitrification biofilter, wherein the aerobic nitration biofilter comprises a water inlet pipeline, a water distribution room, a water distribution system, a spherical light weight porous biological filtering material layer, an aerobic nitration biofilter body, a water discharge area, a water discharge canal and a connecting pipeline, and the anoxic denitrification biofilter comprises a water distribution area, another water distribution system, a denitrification biological filtering material layer, an anoxic denitrification biofilter body, a clear water area, another water discharge canal, and a discharge pipeline. The aerobic nitration biofilter-anoxic denitrification biofilter denitrification system effectively removes ammonia nitrogen, total nitrogen, nitrate nitrogen and suspended solids in wastewater, has a simple structure and low cost, and has great popularization and application value.

Description

A kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system.
Background technology
Coking chemical waste water is the used water difficult to degradate of produce in coal coking a kind of harmful containing large gauging, phenol, ammonia nitrogen, total nitrogen etc., toxic substance.Such waste water has complicated component, ammonia nitrogen and total nitrogen concentration utmost point high, the nutritive elements such as the nitrogen in such waste water enter the eutrophication that water body can cause water body, make a large amount of algae and microbial reproduction and then affect source quality, the high nitrogenous water source of mankind's long-term drinking can cause dizziness, anaemia and various neurological conditions.Along with the surplus development of China's iron and steel production capacity, the quantity of coking chemical waste water is also growing with each passing day, add coking industry new standard and comprehensive discharge standard increasingly strict to the requirement of nitrogen pollutant discharge index, the qualified discharge problem of coking chemical waste water has seriously restricted the Sustainable development of coking industry and steel industry.Whole industry is very urgent to the demand of economical rationality, new and effective denitrogenation technology of coking wastewater.Therefore, how to adopt economy, efficient and stable treatment process, make coking chemical waste water nitrogen content index after treatment can reach up-to-date " Iron And Steel Industry pollution discharge standard ", seem very necessary for the development of steel industry and coking industry, meet the requirement of China's sustainable economic development.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system, effectively remove ammonia nitrogen, nitrate nitrogen, total nitrogen and the suspended substance in waste water, system architecture is simple, with low cost, has great application value.
For achieving the above object, the invention provides a kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system, it is characterized in that it comprises aerobic nitrification biological filter and anoxic denitrification biological filter, aerobic nitrification biological filter comprises inlet channel, distributing water room, water distribution system, the spherical light porous biological filter bed of material, aerobic nitrification biological filter body, exhalant region, outlet canal and connecting tube, inlet channel is communicated with aerobic nitrification biological filter body, distributing water room is arranged on body bottom, aerobic nitrification biological filter, water distribution system is arranged in distributing water room, the spherical light porous biological filter bed of material is set on water distribution system top, spherical light porous biological filter bed of material top is exhalant region, exhalant region has outlet canal, outlet canal is connected with anoxic denitrification biological filter by connecting tube, anoxic denitrification biological filter comprises water distributing area, water distribution system, the denitrification biological filter bed of material, anoxic denitrification biological filter body, clear water zone, outlet canal and discharge tube, water distributing area is arranged on body bottom, anoxic denitrification biological filter, water distribution system is arranged on top, water distributing area, the denitrification biological filter bed of material is set on water distribution system, denitrification biological filter bed of material top is clear water zone, top, clear water zone has outlet canal, and outlet canal bottom is communicated with discharge tube.
Aerobic nitrification biological filter also comprises highly effective air diffuser system, online dissolved oxygen meter and PLC computer operation system, highly effective air diffuser system comprises control cable, frequency transformer, gas blower and air line, aerobic nitrification biological filter body is stretched in air line one end, spherical light porous biological filter bed of material bottom, the other end connects gas blower, gas blower is connected with frequency transformer by controlling cable, frequency transformer is connected with PLC computer operation system by controlling cable, described online dissolved oxygen meter is arranged on the outlet conduit of outlet canal, its output signal is connected with PLC computer operation system,
Anoxic denitrification biological filter also comprises carbon source storage tank and carbon source input pump, and carbon source release position is arranged on the connecting tube between aerobic nitrification biological filter and anoxic denitrification biological filter.
First pending waste water entered the water distributing area of aerobic nitrification biological filter and entered the spherical light porous biological filter bed of material through water distribution system by inlet channel and carry out biology aerobic oxide treatment, the spherical light porous biological filter bed of material is loaded in water distribution system top, pass through gas blower, steam line and be arranged on highly effective air diffuser system in pond to oxygen supply in pool inner water, ammonia nitrogen is oxidized to nitrate nitrogen by the obligate aerobic nitrification bacterium of apposition growth on the spherical light porous biological filter bed of material, and enter outlet canal and send into the water distributing area of anoxic denitrification biological filter by connecting tube by exhalant region, and enter the denitrification biological filter bed of material through denitrification bio-filter water distribution system and carry out denitrification denitrogenation processing, on the denitrification biological filter bed of material, the obligate denitrifying bacteria of apposition growth is reduced to the nitrate nitrogen in waste water nitrogen and from water, overflows and complete denitrification process under the condition of additional carbon, make most suspended substances in waste water be trapped between the filtrate of the denitrification biological filter bed of material in space simultaneously, waste water is clarified, final processing water outlet is discharged by discharge tube by clear water zone and through outlet canal, ammonia nitrogen in the coking chemical waste water tail water of being discharged by discharge tube after final processing, nitrate nitrogen, the indexs such as total nitrogen can be stablized and reach country's " integrated wastewater discharge standard " (GB8978-1996) and " Iron And Steel Industry pollution discharge standard " (GB13456-2012) first discharge standard, additional carbon required in denitrification process can be selected methyl alcohol, acetic acid, the solution of the material such as sodium acetate or glucose, by carbon source storage tank stores and through carbon source add pump according to calculate need to accurately add in the feed-water end pipeline of anoxic denitrification biological filter.
A kind of aerobic nitrification biological filter-anoxic denitrification bacteria filter system proposed by the invention, has effectively removed the ammonia nitrogen in waste water, nitrate nitrogen, total nitrogen, suspended substance, and system architecture is simple, with low cost, has great application value.
Accompanying drawing explanation
Fig. 1 is structure, system, the control schematic diagram of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system.
In figure: 1, highly effective air diffuser system, 2, online dissolved oxygen meter, 3, PLC computer operation system, 4, control cable, 5, frequency transformer, 6, gas blower, 7, air line, 8, inlet channel, 9, distributing water room, 10, water distribution system, 11, the spherical light porous biological filter bed of material, 12, aerobic nitrification biological filter, 13, exhalant region, 14, outlet canal, 15, connecting tube, 16, water distributing area, 17, water distribution system, 18, the denitrification biological filter bed of material, 19, anoxic denitrification biological filter, 20, clear water zone, 21, outlet canal, 22, discharge tube, 23, carbon source adds pump, 24, carbon source storage tank.
Embodiment
The specific embodiment of the invention by reference to the accompanying drawings, is described in detail.
A kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system comprises aerobic nitrification biological filter and anoxic denitrification biological filter, aerobic nitrification biological filter comprises inlet channel 8, distributing water room 9, water distribution system 10, the spherical light porous biological filter bed of material 11, aerobic nitrification biological filter body 12, exhalant region 13, outlet canal 14 and connecting tube 15, inlet channel is communicated with aerobic nitrification biological filter body, distributing water room is arranged on body bottom, aerobic nitrification biological filter, water distribution system is arranged in distributing water room, the spherical light porous biological filter bed of material is set on water distribution system top, spherical light porous biological filter bed of material top is exhalant region, exhalant region has outlet canal, outlet canal is connected with anoxic denitrification biological filter by connecting tube.
Aerobic nitrification biological filter also comprises highly effective air diffuser system 1, online dissolved oxygen meter 2 and PLC computer operation system 3, highly effective air diffuser system comprises controls cable 4, frequency transformer 5, gas blower 6 and air line 7, aerobic nitrification biological filter body is stretched in air line one end, spherical light porous biological filter bed of material bottom, the other end connects gas blower, gas blower is connected with frequency transformer by controlling cable, frequency transformer is connected with PLC computer operation system by controlling cable, described online dissolved oxygen meter is arranged on the outlet conduit of outlet canal, its output signal is connected with PLC computer operation system.
Anoxic denitrification biological filter comprises water distributing area 16, water distribution system 17, the denitrification biological filter bed of material 18, anoxic denitrification biological filter body 19, clear water zone 20, outlet canal 21 and discharge tube 22, water distributing area is arranged on body bottom, anoxic denitrification biological filter, water distribution system is arranged on water distributing area, the denitrification biological filter bed of material is set on water distribution system, denitrification biological filter bed of material top is clear water zone, top, clear water zone has outlet canal, and outlet canal bottom is communicated with discharge tube; Anoxic denitrification biological filter also comprises carbon source storage tank 24 and carbon source input pump 23, and carbon source release position is arranged on the connecting tube between aerobic nitrification biological filter and anoxic denitrification biological filter.
First waste water entered the water distributing area 9 of aerobic nitrification biological filter 12 and entered the spherical light porous biological filter bed of material 11 through water distribution system 10 by inlet channel 8 and carry out biology aerobic oxide treatment, the spherical light porous biological filter bed of material 11 is loaded in water distribution system 10 tops, by gas blower 6, steam line 7 be arranged on highly effective air diffuser system 1 in pond to oxygen supply in pool inner water, ammonia nitrogen is oxidized to nitrate nitrogen by the obligate aerobic nitrification bacterium of apposition growth on the spherical light porous biological filter bed of material 11, and the waste water after purification enters outlet canal 14 by exhalant region 13; send into the water distributing area 16 of anoxic denitrification biological filter 19 and enter the denitrification biological filter bed of material 18 through water distribution system 17 by connecting tube 15 and carry out denitrification denitrogenation processing, on the denitrification biological filter bed of material 18, the obligate denitrifying bacteria of apposition growth is reduced to the nitrate nitrogen in waste water nitrogen and from water, overflows and complete denitrification process under the condition of additional carbon, make most suspended substances in waste water be trapped between the filtrate of the denitrification biological filter bed of material in space simultaneously, waste water is clarified, final processing water outlet is discharged by discharge tube 22 by clear water zone 20 and through outlet canal 21, ammonia nitrogen in the coking chemical waste water tail water of being discharged by discharge tube 22 after final processing, nitrate nitrogen, the indexs such as total nitrogen can be stablized and reach country's " integrated wastewater discharge standard " (GB8978-1996) and " Iron And Steel Industry pollution discharge standard " (GB13456-2012) first discharge standard, additional carbon required in denitrification process can be selected methyl alcohol, acetic acid, the solution of the material such as sodium acetate or glucose, store and add pump 23 through carbon source by carbon source storage tank 24 and need to accurately add in the feed-water end pipeline of anoxic denitrification biological filter 19 according to calculating.
A kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system proposed by the invention, has effectively removed the ammonia nitrogen in waste water, total nitrogen, nitrate nitrogen, suspended substance, and system architecture is simple, with low cost, has great application value.

Claims (3)

1. aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system, it is characterized in that it comprises aerobic nitrification biological filter and anoxic denitrification biological filter, aerobic nitrification biological filter comprises inlet channel, distributing water room, water distribution system, the spherical light porous biological filter bed of material, aerobic nitrification biological filter body, exhalant region, outlet canal and connecting tube, inlet channel is communicated with aerobic nitrification biological filter body, distributing water room is arranged on body bottom, aerobic nitrification biological filter, water distribution system is arranged in distributing water room, the spherical light porous biological filter bed of material is set on water distribution system top, spherical light porous biological filter bed of material top is exhalant region, exhalant region has outlet canal, outlet canal is connected with anoxic denitrification biological filter by connecting tube, anoxic denitrification biological filter comprises water distributing area, water distribution system, the denitrification biological filter bed of material, anoxic denitrification biological filter body, clear water zone, outlet canal and discharge tube, water distributing area is arranged on body bottom, anoxic denitrification biological filter, water distribution system is arranged on top, water distributing area, the denitrification biological filter bed of material is set on water distribution system, denitrification biological filter bed of material top is clear water zone, top, clear water zone has outlet canal, and outlet canal bottom is communicated with discharge tube.
2. a kind of aerobic nitrification biological filter-anoxic denitrification according to claim 1 biological filter denitrification system, it is characterized in that aerobic nitrification biological filter also comprises highly effective air diffuser system, online dissolved oxygen meter and PLC computer operation system, highly effective air diffuser system comprises control cable, frequency transformer, gas blower and air line, aerobic nitrification biological filter body is stretched in air line one end, spherical light porous biological filter bed of material bottom, the other end connects gas blower, gas blower is connected with frequency transformer by controlling cable, frequency transformer is connected with PLC computer operation system by controlling cable, described online dissolved oxygen meter is arranged on the outlet conduit of outlet canal, its output signal is connected with PLC computer operation system.
3. a kind of aerobic nitrification biological filter-anoxic denitrification according to claim 1 biological filter denitrification system, it is characterized in that anoxic denitrification biological filter also comprises carbon source storage tank and carbon source input pump, carbon source release position is arranged on the connecting tube between aerobic nitrification biological filter and anoxic denitrification biological filter.
CN201410107365.4A 2014-03-21 2014-03-21 A kind of aerobic nitrification biological filter-anoxic denitrification biological filter denitrification system Active CN103880182B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293833A (en) * 2015-11-23 2016-02-03 北京中科圣泰环境科技有限公司 Iron and steel complex comprehensive wastewater treatment device and process
CN105645695A (en) * 2016-03-22 2016-06-08 广东开源环境科技有限公司 Method and device for further treating effluent of sewage treatment plant
CN107973488A (en) * 2017-11-24 2018-05-01 华南理工大学 A kind of method of ammonia nitrogen waste water denitrogenation processing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101525207A (en) * 2009-04-15 2009-09-09 郑俊 Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process
CN201962168U (en) * 2011-01-14 2011-09-07 北京工商大学 System for strengthening denitrification and dephosphorization effects of A2/O process
CN102689987A (en) * 2012-06-21 2012-09-26 哈尔滨工业大学 Sewage treatment system and method adopting aerobic-anaerobic combined aerated biological filter tank
CN203768118U (en) * 2014-03-21 2014-08-13 安徽华骐环保科技股份有限公司 Aerobic nitrifying biofilter-anaerobic denitrifying biofilter nitrogen removal system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101525207A (en) * 2009-04-15 2009-09-09 郑俊 Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process
CN201962168U (en) * 2011-01-14 2011-09-07 北京工商大学 System for strengthening denitrification and dephosphorization effects of A2/O process
CN102689987A (en) * 2012-06-21 2012-09-26 哈尔滨工业大学 Sewage treatment system and method adopting aerobic-anaerobic combined aerated biological filter tank
CN203768118U (en) * 2014-03-21 2014-08-13 安徽华骐环保科技股份有限公司 Aerobic nitrifying biofilter-anaerobic denitrifying biofilter nitrogen removal system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293833A (en) * 2015-11-23 2016-02-03 北京中科圣泰环境科技有限公司 Iron and steel complex comprehensive wastewater treatment device and process
CN105293833B (en) * 2015-11-23 2018-10-26 王丽英 A kind of integrated iron and steel works' comprehensive wastewater processing unit and technique
CN105645695A (en) * 2016-03-22 2016-06-08 广东开源环境科技有限公司 Method and device for further treating effluent of sewage treatment plant
CN107973488A (en) * 2017-11-24 2018-05-01 华南理工大学 A kind of method of ammonia nitrogen waste water denitrogenation processing
CN107973488B (en) * 2017-11-24 2020-08-18 华南理工大学 Method for denitrification treatment of ammonia nitrogen wastewater

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