CN108911133A

CN108911133A - A kind of A of improvement2The pond /O and its application

Info

Publication number: CN108911133A
Application number: CN201810782072.4A
Authority: CN
Inventors: 陶昱明
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2018-11-30
Anticipated expiration: 2038-07-16
Also published as: CN108911133B

Abstract

The invention discloses a kind of A of improvement²The pond /O and its application, the A of the improvement²The pond /O is in A²The A of one or more groups of reflux pumps is arranged in the aerobic tank one-point or multi-point in the pond /O²The pond /O, specifically, by the NO for detecting the multiple points of aerobic tank₂ ^‑Height situation, pH value situation of change, ORP value situation of change, the DO value situation of change, NH of-N concentration₄ ⁺Reflux pump is arranged at least one of the situation of change of-N value situation.The invention also discloses a kind of reduction energy consumptions, the method for reducing project cost, reduction carbon source.The A of improvement of the invention²The pond /O utilizes short-cut nitrification and denitrification and Anammox denitrogenation, can save construction investment, reduce occupied area, reduce sewage plant operation energy consumption, reduce carbon source dosage, be particularly suitable for reconstruction or newly-built A²The pond /O.

Description

A kind of A of improvement2The pond /O and its application

Technical field 2

The invention belongs to sewage treatment fields, and in particular to a kind of A of improvement²The pond /O and its application, particularly provide one The method that kind reduces energy consumption, reduces project cost, reduces carbon source, reduces occupied area.

Background technique

The many sewage plant collected outside pipe network rain dirt hybrid junctions in China, part pipe network breakage underground water leakage, river water reverse irrigation, portion It is in charge of net combined system, causes COD of sewage concentration low, especially lower in rainy day COD concentration, C/N is low, in sewage disposal process Nitrogen removal rate is low, need to add carbon source, increases cost of sewage disposal.A²The pond /O is entirely aerated energy consumption consumed by link and accounts for about 50%-the 70% of full factory energy consumption, traditional sewage disposal process uses nitrification and denitrification, and process flow is as follows：

The technique takes up a large area the problem is that process flow is longer, and capital expenditure is high, and energy consumption is high, and COD is low dense Carbon source denitrogenation need to be added when spending.

The research of short distance nitration, Anammox concentrates on the reactors such as SBR, CSTR, A/O, and the above research is mostly to test Room lab scale.It is less about short-cut nitrification and denitrification, Anammox pilot scale and its application at present, not in sewage plant A²/ O is advised in pond It is applied in modelling production.

Summary of the invention

Goal of the invention：Technical problem to be solved by the invention is to provide a kind of A of improvement²The pond /O.

Also there is provided a kind of A of improvement for technical problems to be solved by the present invention²The application in the pond /O.

There is provided a kind of reduction energy consumption, reduction project cost, reduction carbon sources for the last technical problems to be solved of the present invention Method.By in A²One-point or multi-point set interior reflux pump in/O aerobic tank, make full use of short-cut nitrification and denitrification and anaerobism ammonia Oxidation process denitrification.NH₄ ⁺- N is NO by short distance nitration₂ ^-- N, mixed liquor are back to anoxic pond, are removed by denitrification, Anammox Nitrogen.Process flow：

Short-cut nitrification and denitrification：

Anammox：

Technical solution：In order to solve the above-mentioned technical problems, the present invention provides a kind of A of improvement²The pond /O, the improvement A²The pond /O is in A²The A of one or more groups of reflux pumps is arranged in the aerobic tank one-point or multi-point in the pond /O²The pond /O specifically passes through inspection Survey A²The NO of the multiple points of the aerobic tank in the pond /O₂ ^-Height situation, pH value situation of change, ORP value situation of change, the DO value of-N concentration become Change situation, NH₄ ⁺Reflux pump is arranged at least one of the situation of change of-N value situation.

Wherein, described in A²The NO of the multiple points of the pond /O aerobic tank₂ ^-In-N concentration, in NO₂ ^-- N concentration reaches lateral at maximum value One or more groups of reflux pumps are set；And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, pH value fall off rate by Fastly to slow, fall off rate is obviously reduced, downward trend slows down place and one or more groups of reflux pumps are laterally arranged；And/or in A²The pond /O Aerobic tank detect in the ORP value of multiple points, ORP curve climbing speed by being obviously reduced fastly to slow, climbing speed, ascendant trend Slow down place and one or more groups of reflux pumps are laterally set；And/or in A²The aerobic tank in the pond /O detects in the DO value of multiple points, in DO Curve climbing speed is obviously increased by slow-to-fast, climbing speed, one or more groups of reflux pumps are laterally arranged in ascendant trend increase； And/or in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺In-N value, in NH₄ ⁺- N fall off rate is by fastly to slow, fall off rate is bright Aobvious reduction, downward trend slow down place and one or more groups of reflux pumps are laterally arranged.

Wherein, described in A²The NO of the multiple points of the pond /O aerobic tank₂ ^-In-N concentration, NO₂ ^-- N concentration reaches vertically to be set at maximum value Set one or more groups of reflux pumps；And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, and pH value fall off rate is by fast To slow, fall off rate is obviously reduced, downward trend slows down the vertically arranged one or more groups of reflux pumps in place；And/or in A²The pond /O Aerobic tank detects in the ORP value of multiple points, and ORP curve climbing speed is by fastly to slow, climbing speed is obviously reduced, ascendant trend subtracts The slow vertically arranged one or more groups of reflux pumps in place；And/or in A²The aerobic tank in the pond /O detects in the DO value of multiple points, in DO song Line climbing speed is obviously increased by slow-to-fast, climbing speed, the vertically arranged one or more groups of reflux pumps of ascendant trend increase； And/or in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺In-N value, in NH₄ ⁺- N fall off rate is by fastly to slow, fall off rate is bright Aobvious reduction, downward trend slow down the vertically arranged one or more groups of reflux pumps in place.

The content of present invention further includes the A of the improvement²Application of the pond /O in terms of sewage treatment.

The method that it reduction energy consumption that the content of present invention, which further includes a kind of, reduces project cost, reduces carbon source, the method is logical Cross detection A²The NO of the multiple points of the aerobic tank in the pond /O₂ ^-Height situation, pH value situation of change, the ORP value situation of change, DO of-N concentration It is worth situation of change, NH₄ ⁺At least one of the situation of change of-N value situation is in A²The aerobic tank one-point or multi-point setting one in the pond /O Group or multiple groups reflux pump；

Wherein, preferably, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^-In-N concentration, by aerobic tank NO₂ ^-- N concentration is back to anoxic pond up to one or more groups of reflux pumps, mixed liquor are laterally arranged at maximum value, due to sewage quality, With seasonal variations one or more groups of reflux pumps, real-time detection can be laterally arranged in aerobic tank one-point or multi-point in water, temperature etc. The NO of multiple points₂ ^-- N concentration selects NO₂ ^-Reflux pump is opened at-N concentration maxima.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the pH value of multiple points, in pH value fall off rate by fastly extremely Slowly, fall off rate is obviously reduced, downward trend slows down place and one or more groups of reflux pumps are laterally arranged.Aerobic tank nitrifying process pH value Start constantly decline, this is because NH4⁺It is converted into NO₂ ^-- N generates H⁺, NH₄ ⁺+3/2O₂=NO₂ ^-+H₂O+2H⁺, reduction of speed under pH value Rate is larger, and when pH value fall off rate is obviously reduced, downward trend slows down, which is laterally arranged one or more groups of reflux pumps.Due to With seasonal variations one or more groups of reflux can be laterally arranged in aerobic tank one-point or multi-point in sewage quality, water, temperature etc. Pump, real-time detection PH value select pH value fall off rate by fastly to slow, fall off rate is obviously reduced, downward trend slows down unlatching Reflux pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the ORP value of multiple points, when ORP curve starts on constantly It rises, in ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down laterally one group or more of setting Group reflux pump.It, can be in the laterally setting one of aerobic tank one-point or multi-point since sewage quality, water, temperature etc. are with seasonal variations Group or multiple groups reflux pump, the ORP value of the multiple points of real-time detection select ORP curve climbing speed by fastly to slow, climbing speed is bright Aobvious reduction, ascendant trend slow down place and open reflux pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the DO value of multiple points, when DO curve starts constantly to rise, And DO curve climbing speed is obviously increased by slow-to-fast, climbing speed, laterally setting is one or more groups of for ascendant trend increase Reflux pump.It, can be in laterally one group of the setting of aerobic tank one-point or multi-point since sewage quality, water, temperature etc. are with seasonal variations Or multiple groups reflux pump, real-time detection DO value, DO curve climbing speed is obviously increased by slow-to-fast, climbing speed, rising becomes for selection Reflux pump is opened at gesture increase.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺- N value, in NH₄ ⁺- N fall off rate is by fast To slow, fall off rate is obviously reduced, downward trend slows down place and one or more groups of reflux pumps are laterally arranged.Due to sewage quality, water With seasonal variations one or more groups of reflux pumps, real-time detection can be laterally arranged in aerobic tank one-point or multi-point in amount, temperature etc. NH₄ ⁺- N value selects NH₄ ⁺- N fall off rate slows down unlatching reflux pump by downward trend is obviously reduced to slow, fall off rate fastly.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^-- N concentration, in NO₂ ^-- N concentration reaches maximum Vertically arranged one or more groups of reflux pumps at value.It, can be in aerobic tank since sewage quality, water, temperature etc. are with seasonal variations The vertically arranged one or more groups of reflux pumps in one-point or multi-point, real-time detection NO₂ ^-- N selects NO₂ ^-It is opened back at-N concentration maxima Stream pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the pH value of multiple points, in pH value fall off rate by fastly extremely Slowly, fall off rate is obviously reduced, downward trend slows down the vertically arranged one or more groups of reflux pumps in place.Due to sewage quality, water, Temperature etc. with seasonal variations, can in the vertically arranged one or more groups of reflux pumps in aerobic tank one-point or multi-point, real-time detection pH value, Selection pH value fall off rate is by fastly to slow, fall off rate is obviously reduced, downward trend slows down unlatching reflux pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the ORP value of multiple points, and ORP curve starts constantly to rise, In ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down vertically arranged one or more groups of times Stream pump.Since sewage quality, water, temperature etc. are with seasonal variations, can aerobic tank one-point or multi-point it is vertically arranged one group or Multiple groups reflux pump, real-time detection ORP value select ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, rising becomes Gesture slows down place and opens reflux pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the DO value of multiple points, and DO curve starts constantly to rise, DO curve climbing speed is obviously increased by slow-to-fast, climbing speed, the vertically arranged one or more groups of reflux of ascendant trend increase Pump.It, can be vertically arranged one group or more in aerobic tank one-point or multi-point since sewage quality, water, temperature etc. are with seasonal variations Group reflux pump, real-time detection DO value, DO curve climbing speed is obviously increased by slow-to-fast, climbing speed, ascendant trend increases for selection General goal opens reflux pump.

Wherein, preferably, in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺- N value, in NH₄ ⁺- N be worth fall off rate by Fastly to slow, fall off rate is obviously reduced, downward trend slows down the vertically arranged one or more groups of reflux pumps in place.Due to sewage quality, Water, temperature etc., can be in the vertically arranged one or more groups of reflux pumps in aerobic tank one-point or multi-point, real-time detections with seasonal variations NH₄ ⁺- N value selects NH₄ ⁺- N value fall off rate is by fastly to slow, fall off rate is obviously reduced, downward trend slows down unlatching reflux Pump.

A of the invention²The aerobic tank in the pond /O is not limited only in aerobic tank pond, further includes entire aerobic tank itself, such as Aerobic tank pool wall etc..Detection A in the present invention²The NO of the multiple points of the aerobic tank in the pond /O₂ ^-The height situation of-N concentration, pH value variation Situation, ORP value situation of change, DO value situation of change, NH₄ ⁺Multiple points in the situation of change of-N value are at least 2 points.

Heretofore described lateral setting reflux pump refer to and water (flow) direction vertical cross section in horizontal direction into Row setting.

Heretofore described vertically arranged reflux pump refers to carrying out with the vertical direction of water (flow) direction vertical cross section Setting.

Beneficial effect：Compared with prior art, the present invention has following advantages：The present invention passes through detection A²The pond /O aerobic tank NO₂ ^-- N concentration and/or by detection pH value and/or by detection ORP value and/or by detection DO value and/or pass through detection NH₄ ⁺- N value may determine that the optimum position of setting reflux pump.Method of the invention utilizes short-cut nitrification and denitrification and anaerobism ammonia oxygen Change denitrogenation, construction investment can be saved, sewage plant operation energy consumption is reduced, reduce carbon source dosage.Method setting of the invention A²The pond /O and tradition A²The pond /O compares, and aerobic tank tankage can reduce about 1/6, and saving construction cost about 1/6 reduces land used about 1/ 6, aerobic aeration energy consumption reduces 25% or more, for the lower sewage of C/N, A²The pond /O initial operating stage, the non-shape of anaerobic ammonia oxidizing bacteria At short-cut nitrification and denitrification can reduce by 40% organic carbon source.It can reduce by 100% organic carbon after anaerobic ammonia oxidizing bacteria is formed Source.

Detailed description of the invention

Fig. 1 is A of one phase of sewage plant using traditional nitration denitrification sewage treatment²/ O pool process flow chart, one group Serial 1.25 ten thousand m of scale³/d；

One phase of Fig. 2 sewage plant water-quality sampling point distribution map；

Fig. 3 is the NH in one phase of sewage plant sewage₄ ⁺-N、NO₂ ^-- N change curve；

Fig. 4 is ORP, PH, DO change curve in one phase of sewage plant sewage；

Fig. 5 is that the location drawing is arranged in sewage plant one phase reflux pump；

Fig. 6 is sewage plant second phase multiple spot reflux figure；

Fig. 7 is sewage plant second phase water quality sampling distribution map；

Fig. 8 is sewage plant second phase L point reflux NH₄ ⁺-N、NO₂ ^-- N change curve；

Fig. 9 is sewage plant second phase L point reflux ORP, PH, DO change curve；

Figure 10 is sewage plant second phase J point reflux NH₄ ⁺-N、NO₂ ^-- N change curve；

Figure 11 is sewage plant second phase J point reflux ORP, PH, DO change curve.

Specific embodiment

The present invention is further illustrated below in conjunction with Figure of description and specific embodiment, but embodiment is not to the present invention It limits in any form.

Embodiment 1

Certain city sewage plant A²/ O pond first stage of the project is put into serial production in August, 2009,2.5 ten thousand m of design scale³/ d, point two systems Column, every group of 1.25 ten thousand m of series³/ d process flow is as shown in Figure 1：A²The pond /O includes anaerobic pond, anoxic pond and aerobic tank, and technique is adopted Take traditional nitration denitrification technique.

Using the sewage plant A of Fig. 1²The pond /O water quality treatment is as shown in table 1：

Table 1

Since sewage plant inlet COD concentration is low, C/N is than low, A²The pond /O need to add carbon source sodium acetate, increase sewage operation at This.To reduce cost, short-cut nitrification-denitrification, anaerobism ammonia process are explored.

Such as Fig. 2, NO is detected respectively in aerobic tank arrangement water-quality sampling point A, B, C, D, E, F, G, H, I, J, K, L₂ ^--N、NH₄ ⁺- N, PH, DO, ORP value, on January 6th, 2015, testing result was referring to shown in table 2 and Fig. 3, Fig. 4.

Table water quality detection result on January 6th, 2 2015

By Fig. 3, Fig. 4：NO₂ ^-- N is in J point highest；NH₄ ⁺- N is worth decline curve, obviously subtracts in J point fall off rate Small, downward trend slows down；PH value decline curve, J point fall off rate is obviously reduced, downward trend slows down；On ORP curve is continuous It rises, in J point ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down；DO curve constantly rises, J point DO curve climbing speed is significantly increased by slow-to-fast, climbing speed, ascendant trend increases.

It can be by only individually detecting NO by analyzing us₂ ^--N、NH₄ ⁺- N value, pH value, ORP value, certain in DO value One or certain several value is measured simultaneously can obtain and set the conclusion of reflux pump in the J point.

Therefore, we laterally set two groups of reflux pumps according to mixed liquor regurgitant volume in J point.No. 1 point reflux pump is out of service, Process flow is as shown in Figure 5.

Water quality is as shown in table 3 after handling according to above-mentioned setting reflux pump：

Table 3

According to table 1, table 3 it is found that changing reflux pump position, carbon source can be saved.Due to there was only position in aerobic tank shown in Fig. 5 It sets J and sets reflux pump, sewage plant source water quality, water temperature are larger with seasonal variety, position J partial time period NO₂ ^--N、NH₄ ⁺-N、 PH, DO, ORP are not optimum values, for preferably denitrogenation, need to add a small amount of carbon source.

Embodiment 2

The sewage plant creates second phase A within 2016²The pond /O.2.5 ten thousand m of design scale³/ d, point two groups of series, every group of series 1.25 Ten thousand m³/d A²/ O pond width is reduced by 21.5 meters to 18 meters, and occupied area reduces about 1/6.

According to a phase operating experience, the second phase uses short-cut nitrification-denitrification, anaerobic ammonia oxidation process, sets at 2 points of J, L Put back into stream pump reflux.Shown in artwork 6.

Using L point, (anoxic pond and aerobic tank partition wall are referred to aerobic the annual lower reflux pump of water temperature in March December to next year On the pool wall of pond) setting reflux pump, water sampling point distribution map is as shown in fig. 7, NO on December 29th, 2017₂ ^--N、NH₄ ⁺- N detection As shown in figure 8, December 29 ORP, PH, DO detection in 2017 is as shown in Figure 9.The corresponding detection data of Fig. 8 and Fig. 9 is referring to table 4 Shown, two groups of reflux pumps are laterally arranged using J point in the higher reflux pump of water temperature in annual March to December.On June 2nd, 2017 NO₂ ^--N、 NH₄ ⁺As shown in Figure 10, June 2 ORP, PH, DO detection in 2017 is as shown in figure 11, Figure 10 and the corresponding detection of Figure 11 for-N detection Data ginseng is shown in Table 5.

By Fig. 8,9：NO₂ ^-- N is in L point highest；NH₄ ⁺- N is worth decline curve, be obviously reduced in L point fall off rate, Downward trend slows down；PH value decline curve, L point fall off rate is obviously reduced, downward trend slows down；ORP curve constantly rises, In L point ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down；DO curve constantly rises, in L Point DO curve climbing speed is significantly increased by slow-to-fast, climbing speed, ascendant trend increases.

By Figure 10,11：NO₂ ^-- N is in J point highest；NH₄ ⁺- N is worth decline curve, obviously subtracts in J point fall off rate Small, downward trend slows down；PH value decline curve, J point fall off rate is obviously reduced, downward trend slows down；On ORP curve is continuous It rises, in J point ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down；DO curve constantly rises, J point DO curve climbing speed is significantly increased by slow-to-fast, climbing speed, ascendant trend increases.

Table water quality detection result on December 29th, 4 2017

Table water quality detection result on June 2nd, 5 2017

It can be by only individually detecting NO by analyzing us₂ ^--N、NH₄ ⁺- N value, pH value, ORP value, certain in DO value One or certain several value is measured simultaneously can obtain and laterally or vertically set the conclusion of reflux pump in the J point or L point.

It is as shown in table 6 according to above-mentioned setting reflux pump water quality treatment：

According to table 1, table 6 it is found that sewage plant inlet COD concentration is low, C/N is low, using short-cut nitrification-denitrification, anaerobism ammonia Oxidation technology can save 0.075 yuan/ton of carbon source expense without adding carbon source, save power consumption 27%, using electricity wisely expense 0.04 yuan/ton.

According to Fig. 1 and Fig. 6 it is found that about 1/6 can be saved the area, construction investment about 1/6 is saved, aerobic tank tankage can be with About 1/6 is reduced, aerobic aeration energy consumption reduces 25% or more, and anaerobic ammonia oxidizing bacteria is not formed, and short-cut nitrification and denitrification can be reduced 40% organic carbon source.It can reduce by 100% organic carbon source after anaerobic ammonia oxidizing bacteria is formed.

Embodiment 3

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^--N Concentration, the pH value of the multiple points of detection, the ORP value for detecting multiple points, the DO value for detecting multiple points, the NH for detecting multiple points₄ ⁺- N value, The NO in aerobic tank₂ ^-- N concentration up at maximum value, NH₄ ⁺- N value fall off rate is obviously reduced, downward trend slows down place；Under pH value Reduction of speed rate is obviously reduced, downward trend slows down place；ORP curve constantly rises, and ORP curve climbing speed is by fastly to slow, upper raising speed Rate is obviously reduced, ascendant trend slows down place；DO curve constantly rises, and DO curve climbing speed is obvious by slow-to-fast, climbing speed Increase, vertically arranged one group of reflux pump at ascendant trend increase.

Embodiment 4

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^--N Concentration, the pH value of the multiple points of detection, the ORP value for detecting multiple points, the DO value for detecting multiple points, the NH for detecting multiple points₄ ⁺-N Value, the NO in aerobic tank₂ ^-- N concentration up at maximum value, NH₄ ⁺- N value fall off rate is obviously reduced, downward trend slows down place；PH value Fall off rate is obviously reduced, downward trend slows down place；ORP curve constantly rises, and ORP curve climbing speed is by fastly to slow, rising Rate is obviously reduced, ascendant trend slows down place；DO curve constantly rises, and DO curve climbing speed is bright by slow-to-fast, climbing speed Vertically arranged multiple groups reflux pump at aobvious increase, ascendant trend increase.

Embodiment 5

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^--N Concentration, the NO in aerobic tank₂ ^-- N concentration reaches vertically arranged one or more groups of reflux pumps at maximum value.

Embodiment 6

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the pH value of multiple points, In pH value fall off rate by fastly to slow, fall off rate is obviously reduced, downward trend slows down vertically arranged one or more groups of reflux Pump.

Embodiment 7

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the ORP of multiple points Value, ORP curve constantly rises, in ORP curve climbing speed by fastly to slow, climbing speed is obviously reduced, ascendant trend slows down Vertically arranged one or more groups of reflux pumps；

Embodiment 8

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the DO value of multiple points, DO curve constantly rises, when DO curve climbing speed is obviously increased by slow-to-fast, climbing speed, ascendant trend increase is vertically set Set one or more groups of reflux pumps；

Embodiment 9

The present embodiment is same as Example 1, and different is, in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺-N Value, in NH₄ ⁺- N fall off rate is vertically arranged one or more groups of by fastly to slow, fall off rate is obviously reduced, downward trend slows down Reflux pump.

Embodiment 10

The present embodiment is same as Example 2, and different is, in A²The aerobic tank in the pond /O detects the NO of multiple points₂ ^--N Concentration, the pH value of the multiple points of detection, the ORP value for detecting multiple points, the DO value for detecting multiple points, the NH for detecting multiple points₄ ⁺- N value, The NO in aerobic tank₂ ^-- N concentration up at maximum value, NH₄ ⁺- N value fall off rate is obviously reduced, downward trend slows down place；Under pH value Reduction of speed rate is obviously reduced, downward trend slows down place；ORP curve constantly rises, and ORP curve climbing speed is by fastly to slow, upper raising speed Rate is obviously reduced, ascendant trend slows down place；DO curve constantly rises, and DO curve climbing speed is obvious by slow-to-fast, climbing speed Increase, vertically arranged one or more groups of reflux pumps at ascendant trend increase.

It illustrates, preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be Various changes are made to it in form and in details, without departing from claims of the present invention limited range.

Claims

1. a kind of A of improvement²The pond /O, which is characterized in that the A of the improvement²The pond /O is in A²The aerobic tank one-point or multi-point in the pond /O The A of one or more groups of reflux pumps is set²The pond /O, specifically, by detecting A²The NO of the multiple points of the aerobic tank in the pond /O₂ ^-- N concentration Height situation, pH value situation of change, ORP value situation of change, DO value situation of change, NH₄ ⁺At least one in the situation of change of-N value Situation is planted reflux pump is arranged.

2. the A of improvement according to claim 1²The pond /O, which is characterized in that described in A²The multiple points of the aerobic tank in the pond /O NO₂ ^-In-N concentration, NO₂ ^-- N concentration, which reaches, is laterally arranged one or more groups of reflux pumps at maximum value；

And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, and pH value fall off rate is by fastly to slow, fall off rate is obvious Reduce, downward trend slows down place and one or more groups of reflux pumps are laterally arranged；

And/or in A²The aerobic tank in the pond /O detects in the ORP value of multiple points, and ORP curve climbing speed is by fastly to slow, climbing speed It is obviously reduced, ascendant trend slows down place and one or more groups of reflux pumps are laterally arranged；

And/or in A²The aerobic tank in the pond /O detects in the DO value of multiple points, in DO curve climbing speed by slow-to-fast, climbing speed It obviously increases, one or more groups of reflux pumps is laterally set at ascendant trend increase；

And/or in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺In-N value, in NH₄ ⁺- N fall off rate is by fastly to slow, lower reduction of speed Rate is obviously reduced, downward trend slows down place and one or more groups of reflux pumps are laterally arranged.

3. the A of improvement according to claim 1²The pond /O, which is characterized in that described in A²/ O pond aerobic tank detects multiple points NO₂ ^-In-N concentration, NO₂ ^-- N concentration reaches vertically arranged one or more groups of reflux pumps at maximum value；

And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, and pH value fall off rate is by fastly to slow, fall off rate is obvious Reduce, downward trend slows down the vertically arranged one or more groups of reflux pumps in place；

And/or in A²The aerobic tank in the pond /O detects in the ORP value of multiple points, and ORP curve climbing speed is by fastly to slow, climbing speed It is obviously reduced, ascendant trend slows down the vertically arranged one or more groups of reflux pumps in place；

And/or in A²The aerobic tank in the pond /O detects in the DO value of multiple points, in DO curve climbing speed by slow-to-fast, climbing speed It obviously increases, vertically arranged one or more groups of reflux pumps at ascendant trend increase；

And/or in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺In-N value, in NH₄ ⁺- N fall off rate is by fastly to slow, lower reduction of speed Rate is obviously reduced, downward trend slows down the vertically arranged one or more groups of reflux pumps in place.

4. the A of the described in any item improvement of claim 1 ~ 3²Application of the pond /O in terms of sewage treatment.

5. a kind of method for reducing energy consumption, reducing project cost, reducing carbon source, which is characterized in that the method is to pass through detection The NO of the multiple points of aerobic tank₂ ^-Height situation, pH value situation of change, ORP value situation of change, the DO value situation of change, NH of-N concentration₄ ⁺At least one of the situation of change of-N value situation is in A²One or more groups of reflux pumps are arranged in the aerobic tank one-point or multi-point in the pond /O.

6. the method according to claim 5 for reducing energy consumption, reducing project cost, reducing carbon source, which is characterized in that in A²/ The aerobic tank in the pond O detects the NO of multiple points₂ ^-In-N concentration, NO₂ ^-- N concentration, which reaches, is laterally arranged one or more groups of reflux at maximum value Pump；

And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, in pH value fall off rate by fastly to slow, fall off rate is bright Aobvious reduction, downward trend slow down place and one or more groups of reflux pumps are laterally arranged；

And/or in A²The aerobic tank in the pond /O detects in the ORP value of multiple points, in ORP curve climbing speed by fastly to slow, upper raising speed Rate is obviously reduced, ascendant trend slows down place and one or more groups of reflux pumps are laterally arranged；

7. the method according to claim 5 for reducing energy consumption, reducing project cost, reducing carbon source, which is characterized in that in A²/ The aerobic tank in the pond O detects the NO of multiple points₂ ^-In-N concentration, in NO₂ ^-- N concentration is up to vertically arranged one or more groups of times at maximum value Stream pump；

And/or in A²The aerobic tank in the pond /O detects in the pH value of multiple points, in pH value fall off rate by fastly to slow, fall off rate is bright Aobvious reduction, downward trend slow down the vertically arranged one or more groups of reflux pumps in place；

And/or in A²The aerobic tank in the pond /O detects in the ORP value of multiple points, and ORP curve constantly rises, in ORP curve climbing speed By fastly to slow, climbing speed is obviously reduced, ascendant trend slows down vertically arranged one or more groups of reflux pumps；

And/or in A²The aerobic tank in the pond /O detects in the DO value of multiple points, and DO curve constantly rises, when DO curve climbing speed by Slow-to-fast, climbing speed obviously increase, vertically arranged one or more groups of reflux pumps at ascendant trend increase；

And/or in A²The aerobic tank in the pond /O detects the NH of multiple points₄ ⁺In-N value, in NH₄ ⁺- N fall off rate is by fastly to slow, lower reduction of speed Rate is obviously reduced, downward trend slows down place, vertically arranged one or more groups of reflux pumps.