CN108191151A

CN108191151A - A kind of processing method of acid waste water

Info

Publication number: CN108191151A
Application number: CN201711494958.0A
Authority: CN
Inventors: 潘明芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-31
Filing date: 2017-12-31
Publication date: 2018-06-22

Abstract

The invention discloses a kind of processing methods of acid waste water, include the following steps：（1）Industrial wastewater is put into neutralization pond, and lime stone is put into neutralization pond, reacts 1 3h, realizes that waste water neutralizes；（2）Waste water after neutralization is carried out to be discharged into coagulating basin, coagulating sedimentation is carried out in coagulating basin, removes the organic matter in waste water；（3）By industrial wastewater after treatment through strainer filtering, the industrial wastewater that obtains that treated.The present invention is effectively carried out neutralization operation to acid ion, is realized and acid ion in waste water is effectively removed so that treated, and waste water reaches discharge standard, avoids polluting the environment by the addition of lime stone.

Description

A kind of processing method of acid waste water

Technical field

The invention belongs to industrial waste water treatment, more particularly, to a kind of processing method of acid waste water.

Background technology

A large amount of waste water will be generated in industrial processes, these waste water can not be directly discharged in external environment, needed It after treatment, just being capable of normal discharge.Traditional treatment process is difficult to remove the acid ion in waste water completely, causes final Acid ion still can be carried in the waste water that discharges that treated outward, influences ecological environment, even polluted drinking water, and useless Organic matter in water is also difficult to be removed, and water treatment effect is poor.

Invention content

The present invention is in order to overcome the deficiencies of the prior art and provide a kind of processing side of the acid waste water of good waste water treatment effect Method.

To achieve these goals, the present invention uses following technical scheme：A kind of processing method of acid waste water, including with Lower step：

(1) industrial wastewater is put into neutralization pond, and lime stone is put into neutralization pond, react 1-3h, realized in waste water With；

(2) waste water after neutralization is carried out being discharged into coagulating basin, coagulating sedimentation is carried out in coagulating basin, remove having in waste water Machine object；

(3) by industrial wastewater after treatment through strainer filtering, the industrial wastewater that obtains that treated.The present invention passes through stone The addition of lime stone effectively carries out neutralization operation to acid ion, realizes and acid ion in waste water is effectively removed so that processing Waste water afterwards reaches discharge standard, avoids polluting the environment；By coagulating treatment effectively by the organic matter removal in waste water, Good waste water treatment effect.

Further, active sludge treatment step is further included before the step (3), the concrete operations of the step are as follows： After industrial wastewater is handled by aeration tank, industrial wastewater is passed through in sedimentation basin and carries out separation of solid and liquid, the sludge in sedimentation basin returns Aeration tank is flowed to, to maintain the concentration of activated sludge in the aeration tank；Aeration tank can further be gone as advanced treatment unit Except the Long carbon chain lipid material and small molecular organic matter in waste water, deepen the treatment effect of waste water, good waste water treatment effect；Its Secondary, aeration tank can play the role of three kinds of common bio-aeration pool, secondary settling tank and sand filtration simultaneously, improve the efficiency of wastewater treatment； Sludge can be directly utilized in aeration tank, and then avoid discharge, cleaning and the processing for sludge, reduced engineering cost and thrown Enter, reduce the amount of labour of worker.

Further, the filler used in the aeration tank is activated carbon or haydite.

Further, the dissolved oxygen content in the aeration tank is 0.5-5mg/L.

Further, need to add flocculant to sedimentation basin in the separation of solid and liquid process, the flocculant be selected from PAC, It is one or more in PAM, ferrous sulfate, aluminum sulfate.

Further, the dosage of the flocculant is 100-160mg/L

Further, the neutralization pond includes pond body, the waste liquid inlet being connected with pond body, neutralization feed inlet, waste residue row Outlet, the agitating device in pond body and with the matched driving device of the agitating device；The driving device includes being used for Drive the first driving part that the agitating device moves up and down and the second driving portion for the mixing component or so to be driven to act Part；The agitating device includes master arm, the mixing arm being spaced apart on the master arm and is rotatably arranged in the mixing arm On agitating paddle component；The power-assist knot for reducing frictional force between the two is equipped between the agitating paddle component and mixing arm Structure；Reduction, turntable and one end and this turn that second driving part includes the second actuator, is connected with second actuator The drive link that disk is connected, the drive link other end are hinged with the master arm.Pass through the first driving part and second in the present invention Driving part respectively drive mixing arm up and down, left and right two different directions on actions, ensure mixing arm in neutralization pond Waste liquid is sufficiently stirred, and the liquid moment in neutralization pond is in disturbance state, is not in the situation that lime is sunk to the bottom, and ensures stone Ash comes into full contact with and reacts with waste water, and neutralization is good, effectively avoids remaining acid ion in waste water after treatment, and anti- It answers speed that can be accelerated, improves the efficiency of wastewater treatment；Since agitating paddle component can be rotated relative to mixing arm, so as to stir During arm moves left and right, agitating paddle component can rotate, so as to reduce the resistance of motion that mixing arm is subject to so that second Driving part is more easy to driving master arm and acts, and lower-powered model can be used in the second driving part, saves electric power resource； The setting of power-assist structure can reduce frictional force of the agitating paddle component in rotation between mixing arm, so as to further reduce The resistance that mixing arm is subject to when moving left and right, further saves energy consumption；Meanwhile power-assist structure can also reduce agitating paddle component with Abrasion between mixing arm extends the service life of equipment；The drive link is connected at the eccentric position of the turntable, is passed through The connection of eccentric manner realizes that the second actuator in rotation, can drive the master arm that the movement on left and right directions occurs, Without master arm being driven to move by the form that flings of cylinder, equipment is more simple, and motor is hardly damaged, and service life is more It is long.

Further, the agitating paddle component includes the external member of C-shaped configuration, is spaced apart in the agitating paddle in external member and sets In the removable component in external member, the external member inner surface is equipped with Connection protrusion, and the mixing arm is equipped with and the Connection protrusion phase The open channel of cooperation, the power-assist structure are set in the Connection protrusion；By the cooperation of Connection protrusion and open channel, realize Positioning to agitating paddle effectively prevent agitating paddle to occur position movement on mixing arm；Effectively external member is locked by removable component It is scheduled on mixing arm, prevents external member from position movement occur；And by the setting of removable component, also enable agitating paddle component phase Mixing arm is dismantled, is conveniently replaceable, extends the service life of equipment entirety.

Further, the power-assist component includes the annular receiving groove being set on the Connection protrusion outer surface, is placed in this Rolling member in annular receiving groove, the Anti-slip cover covered at outside the Connection protrusion and the fixing piece for positioning the Anti-slip cover；Rolling Moving part can be rolled when agitating paddle rolls, and effectively reduce the frictional force between Connection protrusion and open channel；Anti-slip cover leads to It crosses fixing piece to be fixed in Connection protrusion, so as to which rolling member be effectively prevent from holding tank to deviate from.

Further, the circle that the rolling member is supplied to be pierced by the Anti-slip cover outer surface that is equipped with being spaced on the Anti-slip cover is opened Mouthful, the diameter of the circular open is less than the diameter of the rolling member；The limiting played the role of by circular open to rolling member, Rolling member is effectively prevent to be rolled to be bonded to each other together, rolling member is more uniformly spread, and the effect for reducing frictional force is more preferable；And Also rolling member is effectively prevent mutually to collide and generate sound, reduce noise during equipment work.

Further, the Anti-slip cover is made of aluminium, the fixing piece be two clamp springs, the Connection protrusion be equipped with Matched two card slot of the fixing piece；Aluminium has certain ductility, so as to which when clamp spring clamping, Anti-slip cover is by clamp spring clamping Position can deform upon so that clamp spring is caught in into card slot, effectively prevent clamp spring by deviating from Connection protrusion.

Further, the agitating paddle is intervally distributed with multiple leakage straight slots to be obliquely installed on the agitating paddle；Inclination is set It puts so that agitating paddle can drive more liquid to move up when moving up and down, enhances stirring efficiency；Leakage straight slot can reduce stirring The resistance being subject to when paddle moves up and down, the first driving part energy consumption is relatively low, and is hardly damaged.

Further, first driving part includes the stent being set on the neutralization pond, the on the stent One actuator, connection frame matched with the master arm, the driving section for connecting the connection frame and first actuator Part.

Further, the connection frame side wall be equipped with the matched idler wheel of the stent, the master arm end is arranged in In the connection frame, it is equipped with and the matched roller of the master arm in connection frame.

In conclusion the present invention has the following advantages：Neutralization operation effectively is carried out to acid ion, is realized to sour in waste water Radical ion effectively removes so that treated, and waste water reaches discharge standard, and good waste water treatment effect avoids causing dirt to environment Dye；By coagulating treatment effectively by the organic matter removal in waste water, good waste water treatment effect.

Description of the drawings

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the structure diagram of agitating paddle component.

Fig. 3 is the cooperation schematic diagram of agitating paddle component and mixing arm.

Fig. 4 is the enlarged drawing at the middle B of Fig. 3.

Fig. 5 is the cooperation schematic diagram with master arm for connecting frame.

Specific embodiment

In order to which those skilled in the art is made to be better understood from the present invention program, below in conjunction in the embodiment of the present invention Attached drawing carries out the technical solution in the embodiment of the present invention clear, complete description.

Embodiment 1

A kind of processing method of acid waste water, includes the following steps：(1) industrial wastewater is put into neutralization pond, and in With put into lime stone in pond, the input amount of the lime stone is 160mg/L, after putting into lime stone, starts the stirring in neutralization pond Device, is stirred waste water in device, and neutralization reaction 1h realizes the neutralization to waste water；(2) by industrial wastewater after treatment Through strainer filtering, the industrial wastewater that obtains that treated；Further, active sludge treatment step is further included before the step (3) Suddenly, the concrete operations of the step are as follows：After industrial wastewater is handled by aeration tank, industrial wastewater is passed through in sedimentation basin and is consolidated Liquid detaches, and needs in separation of solid and liquid process to add flocculant to sedimentation basin, and the flocculant is selected from PAC, and the flocculant Dosage is 100mg/L；The sludge generated in sedimentation basin via precipitation flows back into aeration tank by recovery channel, with described in maintenance The concentration of activated sludge in aeration tank；Specifically, the filler used in the aeration tank is activated carbon or haydite；The aeration tank In dissolved oxygen content be 0.5mg/L.

Specifically, as shown in Figs. 1-5, the neutralization pond includes pond body 1, the waste liquid inlet 2 set on pond body top, neutralization Feed inlet 3, waste residue outlet 4, agitating device and driving device set on pond body lower part；The waste liquid inlet 2 neutralizes charging Mouth 3, waste residue outlet 4 are connected with the pond body 1；The driving device includes driving the agitating device dynamic up and down The first driving part 5 made and the second driving part 6 for the mixing component or so to be driven to act；The agitating device includes Master arm 71, mixing arm 72 and agitating paddle component；The agitating paddle component includes external member 81, agitating paddle 82 and removable component 83；The mixing arm 72 is set as multiple, the evenly spaced distribution of length direction of these mixing arms along the master arm；It is described Agitating paddle component is set on the mixing arm, and agitating paddle component is set as multiple, uniform along the length direction interval of the mixing arm Distribution；The external member 81 is set for C-shaped configuration, can be sheathed with outside the mixing arm；The agitating paddle 82 is along the external member Evenly spaced setting is enclosed in outer surface one, it is preferred that a circle agitating paddle is 4；It is solid between the agitating paddle and the external member Even, and the two is that stainless steel is made, and is connected by welding；81 inner surface of external member sets the Connection protrusion there are two cylindricality 811, the mixing arm 72 is equipped with matched with the Connection protrusion one circle open channel 721, when external member is set in mixing arm When upper, the Connection protrusion is caught in the open channel, and Connection protrusion can rotate in open channel, so that stirring Paddle component can be rotated relative to stirring parts.

Further, the removable component 83 includes set on the card division 831 of the external member wherein one end and is hinged on the set The buckle 832 of the part other end on hand, the buckle are equipped with the bayonet passed through for the card division；Preferably, the side wall of the card division It is equipped with the strip card slot being caught in for the bayonet side wall on hand, buckle is effectively prevent to be disengaged with card division.

In order to reduce the frictional force between external member and mixing arm, we set between the agitating paddle component and mixing arm 72 The power-assist structure for reducing frictional force between the two is put；Specifically, the power-assist structure is set on the Connection protrusion 811 On, which includes annular receiving groove 91, multiple rolling members 92, Anti-slip cover 93 and fixing piece 94, the annular receiving groove 91 be the circle groove on 811 outer surface of Connection protrusion；The rolling member 92 is steel ball, is contained in the annular In holding tank 91；The Anti-slip cover 93 is made of aluminium, which covers at outside the Connection protrusion, and the Anti-slip cover 93 Its circumferencial direction of upper edge is evenly spaced to be distributed with multiple circular opens 931, the number of these circular opens 931 and the rolling The number of part is corresponding, and the diameter of circular open 931 is less than the diameter of the rolling member 92；When the Anti-slip cover covers at institute When stating outside Connection protrusion, the rolling member part is pierced by from the circular open 931, and stretches out the Anti-slip cover outer surface, but not It can be dropped out from circular open 931.

The fixing piece 94 is clamp spring, and is set as two, is separately positioned on the left and right sides position of the rolling member, Anti-slip cover can be firmly fixed to outside Connection protrusion by two clamp springs, prevents Anti-slip cover from being separated from Connection protrusion；Make To be preferred, the Connection protrusion 811 is equipped with to be set respectively with matched two card slot 812 of the fixing piece, two card slots 812 On the left and right sides of the holding tank, when fixing piece positions the Anti-slip cover, the holding firmware will be caught in institute It states in card slot, locating effect is more preferable.

Further, the agitating paddle 82 is is obliquely installed, and is being obliquely installed from top to bottom, agitating paddle and mixing arm Between angle be preferably 45 °；The resistance being subject in the process is being moved up and down in order to reduce agitating paddle, we are in the agitating paddle The evenly spaced leakage straight slot 821 that distributed multiple bar shapeds on 82.

First driving part 5 includes stent 11, the first actuator 51, reduction, connection frame 52 and transmission parts 53；The stent 11 is erected at the top of neutralization pond, and first actuator 51, reduction, connection frame 52 and driving section 53 are equal Two are set as, is set up separately in the left and right ends of the neutralization pond；The reduction is the reducing gear being directly commercially available on the market Turbine, first actuator 51 are firsthand motor on the market, which is set on the neutralization pond top, institute It states connection frame 52 to match with the master arm, the driving section 53 is used to connect the connection frame and first actuator；Institute It states connection frame 52 to be placed in the stent 11, can be moved up and down along the stent；Preferably, the left and right sides of the connection frame 52 An idler wheel 521 is respectively equipped on wall, when connection frame moves up and down, idler wheel is moved up and down along stent；The transmission The bar 532 that component 53 includes the circular discs 531 being connected with the output shaft of the reducing gear turbine and one end is connected with the circular discs, The other end of the bar is connected with the connection frame；Specifically, one end of the bar is connected on the eccentric position of the circular discs, Here eccentric position refers to be connected to close on the outer peripheral position of circular discs upper surface, so as to be rotated when circular discs When, you can so that bar moves up and down, so as to which the connection frame be driven to move up and down.

The left and right ends of the master arm 72 are respectively penetrated in the connection frame 52 of neutralization pond left and right ends, can be Left and right action occurs under the driving of two driving parts in connection frame；In order to reduce between the master arm and the connection frame Frictional force, we are respectively provided with a roller 522 on the left and right inner wall of the connection frame 52, when master arm occurs mobile, The roller can rotate, so as to reduce power-assist arm and connect the frictional force between frame.

Second driving part 6 include the second actuator 61, reduction, turntable 62 and drive link 63, described second Actuator 61 is directly to purchase obtained motor on the market, and the reduction is the reduction gearing being directly commercially available on the market Machine；62 central part of turntable is connected with the output shaft of the reducing gear turbine, and described 63 one end of drive link is connected to described turn At the eccentric position of disk 62, the other end and the master arm 71 are hinged, wherein, refer to be connected at eccentric position close to turning On the outer peripheral position of 62 upper surface of disk, so as to which when turntable rotates, left and right action can occur for the drive link, so as to drive The dynamic master arm drives mixing arm to move left and right.

Embodiment 2

Include the following steps：(1) industrial wastewater is put into neutralization pond, and lime stone is put into neutralization pond, the stone The input amount of lime stone is 160mg/L, after putting into lime stone, starts the agitating device in neutralization pond, device is stirred to waste water, Neutralization reaction 3h realizes the neutralization to waste water；(2) by industrial wastewater after treatment through strainer filtering, obtain that treated Industrial wastewater；Further, active sludge treatment step is further included before the step (3), the concrete operations of the step are as follows： After industrial wastewater is handled by aeration tank, industrial wastewater is passed through in sedimentation basin and carries out separation of solid and liquid, needed in separation of solid and liquid process Flocculant is added to sedimentation basin, the flocculant is selected from ferrous sulfate；The dosage of the flocculant is 160mg/L；Precipitation The sludge generated in pond via precipitation flows back into aeration tank by recovery channel, to maintain the dense of activated sludge in the aeration tank Degree；Specifically, the filler used in the aeration tank is activated carbon or haydite；Dissolved oxygen content in the aeration tank is 5mg/ L。

The structure of neutralization pond in the present embodiment is in the same manner as in Example 1, and so it will not be repeated.

Embodiment 3

Include the following steps：(1) industrial wastewater is put into neutralization pond, and lime stone is put into neutralization pond, the stone The input amount of lime stone is 160mg/L, after putting into lime stone, starts the agitating device in neutralization pond, device is stirred to waste water, Neutralization reaction 3h realizes the neutralization to waste water；(2) by industrial wastewater after treatment through strainer filtering, obtain that treated Industrial wastewater；Further, active sludge treatment step is further included before the step (3), the concrete operations of the step are as follows： After industrial wastewater is handled by aeration tank, industrial wastewater is passed through in sedimentation basin and carries out separation of solid and liquid, needed in separation of solid and liquid process Flocculant is added to sedimentation basin, the flocculant is ferrous sulfate and aluminum sulfate；The dosage of the flocculant is 140mg/ L；The sludge generated in sedimentation basin via precipitation flows back into aeration tank by recovery channel, to maintain activity in the aeration tank dirty The concentration of mud；Specifically, the filler used in the aeration tank is activated carbon or haydite；Dissolved oxygen content in the aeration tank For 4mg/L.

Obviously, described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment should all belong to the scope of protection of the invention.

Claims

1. a kind of processing method of acid waste water, it is characterised in that：Include the following steps：

Industrial wastewater is put into neutralization pond, and lime stone is put into neutralization pond, reacts 1-3h, realizes that waste water neutralizes；

Waste water after neutralization is carried out to be discharged into coagulating basin, coagulating sedimentation is carried out in coagulating basin, removes the organic matter in waste water；

By industrial wastewater after treatment through strainer filtering, the industrial wastewater that obtains that treated.

2. the processing method of acid waste water according to claim 1, it is characterised in that：The step（3）It further includes before Active sludge treatment step, the concrete operations of the step are as follows：After industrial wastewater is handled by aeration tank, industrial wastewater is passed through Carry out separation of solid and liquid in sedimentation basin, the sludge reflux in sedimentation basin is to aeration tank, to maintain activated sludge in the aeration tank Concentration.

3. the processing method of acid waste water according to claim 2, it is characterised in that：The filler used in the aeration tank For activated carbon or haydite.

4. the processing method of acid waste water according to claim 2, it is characterised in that：Dissolved oxygen in the aeration tank contains It measures as 0.5-5mg/L.

5. the processing method of acid waste water according to claim 2, it is characterised in that：It is needed in the precipitation process of coagulation To sedimentation basin dosing coagulant, the coagulant is selected from the weight for ferrous sulfate and aluminum sulfate, the ferrous sulfate and aluminum sulfate Than being 3:1.

6. the processing method of acid waste water according to claim 5, it is characterised in that：The dosage of the flocculant is 100-160mg/L。

7. the processing method of acid waste water according to claim 1, it is characterised in that：The neutralization pond includes pond body（1）、 The waste liquid inlet being connected with pond body（2）, neutralize feed inlet（3）, waste residue outlet（4）, agitating device in pond body and With the matched driving device of the agitating device；Driving device is stated to include driving the first of agitating device up and down action to drive Dynamic component（5）With the second driving part for the mixing component or so to be driven to act（6）.

8. the processing method of acid waste water according to claim 7, it is characterised in that：The agitating device includes master arm （71）, the mixing arm that is spaced apart on the master arm（72）And it is rotatably arranged in the agitating paddle component on the mixing arm；Institute State agitating paddle component and mixing arm（72）Between be equipped with power-assist structure for reducing frictional force between the two；Described second drives Dynamic component（6）Including the second actuator（61）, be connected with second actuator reduction, turntable（62）And one end and the turntable Connected drive link（63）, the drive link（63）The other end and the master arm（71）It is hinged.

9. the processing method of acid waste water according to claim 8, it is characterised in that：The agitating paddle component includes C-shaped The external member of structure（81）, be spaced apart in the agitating paddle in external member（82）And the removable component in external member（83）, the set Part（81）Inner surface is equipped with Connection protrusion（811）, the mixing arm（72）It is equipped with and the matched notched rail of the Connection protrusion Road（721）, the power-assist structure is set on the Connection protrusion（811）On.

10. the processing method of acid waste water according to claim 9, it is characterised in that：The power-assist component includes being set on The Connection protrusion（811）Annular receiving groove on outer surface（91）, the rolling member that is placed in the annular receiving groove（92）, be provide with Anti-slip cover outside the Connection protrusion（93）And the fixing piece for positioning the Anti-slip cover（94）.