CN106495311B - Purification treatment system of basic dye waste water - Google Patents

Purification treatment system of basic dye waste water Download PDF

Info

Publication number
CN106495311B
CN106495311B CN201611152361.3A CN201611152361A CN106495311B CN 106495311 B CN106495311 B CN 106495311B CN 201611152361 A CN201611152361 A CN 201611152361A CN 106495311 B CN106495311 B CN 106495311B
Authority
CN
China
Prior art keywords
pipe
arc
water
water inlet
water outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201611152361.3A
Other languages
Chinese (zh)
Other versions
CN106495311A (en
Inventor
杨昱涵
范会涛
邱东方
刘小娣
赵一阳
刘珊珊
仲志国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanyang Normal University
Original Assignee
Nanyang Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanyang Normal University filed Critical Nanyang Normal University
Priority to CN201611152361.3A priority Critical patent/CN106495311B/en
Publication of CN106495311A publication Critical patent/CN106495311A/en
Application granted granted Critical
Publication of CN106495311B publication Critical patent/CN106495311B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
    • B01J29/46—Iron group metals or copper
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/308—Dyes; Colorants; Fluorescent agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/026—Fenton's reagent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model provides a purification treatment system of basic dyestuff waste water, the completion purification treatment after the alkaline dyestuff waste water of pending passes through homogeneity pond homogeneity, catalytic reaction pond reaction and grit chamber subsides in proper order, and the inlet tube and the outlet pipe of homogeneity pond communicate through the unequal arc communicating pipe of length to make the water that gets into arc communicating pipe through the inlet tube at first reachs the outlet pipe at last, and the water that gets into arc communicating pipe through the inlet tube at last reachs the outlet pipe at first. The invention has the advantages of simple operation, mild condition, low cost, low energy consumption, no secondary pollution and the like, can efficiently treat the common alkaline dye wastewater in the printing and dyeing industry, and can compatibly treat the wastewater under neutral and acidic conditions.

Description

Purification treatment system of basic dye waste water
Technical Field
The invention relates to wastewater treatment in the field of environmental protection, in particular to a purification treatment system for basic dye wastewater.
Background
The dye wastewater is colored wastewater containing dye, has the characteristics of complex composition, high alkalinity, high chromaticity, high concentration of substances difficult to be biodegraded, large change of water quantity and water quality and the like, and is one of industrial wastewater difficult to treat.
In order to solve the problem of environmental pollution caused by organic dyes, people adopt different methods to treat dye-containing wastewater, and the existing treatment methods for dye wastewater mainly comprise a physical and chemical treatment method, a radiation method, an adsorption extraction method, a micro-electrolysis method, a biological degradation method and the like, but the technologies are difficult to be generally applied due to low efficiency or high cost and the like. The Fenton oxidation method as a classic advanced oxidation technology has the advantages of high efficiency, simplicity, mildness, universality and the like, but has the following defects: 1. the reaction needs to be carried out under an acidic condition, a large amount of acid is consumed, and the salinity of effluent is improved; 2. large amount of catalyst is consumed but difficult to recover; 3. the generation of a large amount of iron-containing sludge easily causes secondary pollution; 4. the effluent is yellow due to the large amount of iron ions, which affects the chroma treatment effect.
Disclosure of Invention
The system comprises a homogenizing tank, a catalytic reaction tank and a grit chamber, so that the basic dye wastewater is fully homogenized in the homogenizing tank in sequence, fully reacts with hydrogen peroxide under the action of a catalyst in the catalytic reaction tank, and finally generates precipitate in the grit chamber and discharges purified water.
The technical scheme adopted by the invention for solving the technical problems is as follows: a purification treatment system for basic dye wastewater is characterized in that the basic dye wastewater to be treated is subjected to homogenization in a homogenization tank, reaction in a catalytic reaction tank and sedimentation in a grit chamber in sequence to complete purification treatment, wherein the homogenization tank comprises a water inlet pipe and a water outlet pipe which are positioned on the same straight line but are not directly communicated, one end of the water inlet pipe is closed, the other end of the water inlet pipe is a basic dye wastewater inlet, one end of the water outlet pipe is communicated with the catalytic reaction tank, and the other end of the water outlet pipe is communicated with a hydrogen peroxide inlet pipe; cloth is equallyd divide along length direction between them in the both sides of inlet tube and outlet pipe wall has a plurality of through-holes, an arbitrary through-hole of one side passes through arc communicating pipe and the corresponding through-hole intercommunication of homonymy on the outlet pipe wall on the inlet tube to form a plurality of arc rivers passageways of distributing in inlet tube and outlet pipe both sides, and the length of these arc rivers passageways shortens gradually to the direction of the other end from the water inlet of inlet tube, so that the sewage that gets into arc communicating pipe through the inlet tube at first reachs the outlet pipe at last, and the sewage that gets into arc communicating pipe through the inlet tube at last reaches the outlet pipe at first.
Be provided with the reposition of redundant personnel wedge that separates into two parts with its inside in the inlet tube, and the through-hole on the pipe wall of inlet tube both sides is located the both sides of reposition of redundant personnel wedge respectively, the bottom of reposition of redundant personnel wedge is fixed on the closed end of inlet tube, and its thickness reduces to the other end from the bottom gradually, so that its both sides form two inclined planes, it has a plurality of rows of arc bead I to distribute on two inclined planes, and the bulge height of arc bead I risees to the direction of bottom from the free end of reposition of redundant personnel wedge gradually, and the tip of reposition of redundant personnel wedge free end has one towards the bellied arc arris of the direction of intaking, and the both sides of arc arris surpass reposition of redundant personnel wedge, so that both junctions form the ka tai of rivers direction dorsad, the bulge height of ka tai is less than the bulge height of the one row of arc bead I that is closest to the ka tai.
Be provided with a plurality of groups of elastic component in the outlet pipe, every group of elastic component includes that one fixes the tight steel wire that tightens at arc communicating pipe water outlet department, is provided with at least a set of vibration subassembly on the tight steel wire, and every group vibration subassembly is including fixing adapter sleeve and the pterygoid lamina of symmetry setting in the adapter sleeve both sides on tightening the steel wire, and the pterygoid lamina just to the water outlet of arc communicating pipe to make and enter into the surface at the pterygoid lamina through arc communicating pipe water impact in the outlet pipe.
The surface of the tightening steel wire is densely distributed with bulges.
A plurality of parallel spiral depressions are distributed on the inner wall surface of the arc-shaped communicating pipe, and the screwing direction of the spiral depressions is the same as the water flow direction.
The through holes on the two sides of the pipe walls of the water inlet pipe and the water outlet pipe are staggered with each other.
The catalytic reaction tank comprises a rectangular tank body, a catalyst inlet and a water outlet I are respectively arranged at two ends of the tank body, a plurality of water inlets I are distributed on the side walls of two sides of the tank body, and each water inlet I is communicated with a pipeline communicated with a water outlet pipe of the homogenizing tank 1 through a branch pipe; a plurality of guide plates are respectively arranged on the inner walls of the two sides of the tank body, the guide plates are inclined towards one side of the catalyst inlet, and the inclination angle is 80-85 degrees with the side wall of the tank body; the projection of the flow guide plate on the side wall of the tank body is partially overlapped with the projection of a connecting line between two water inlets I which are close to the flow guide plate and are positioned on the different sides of the tank body.
A plurality of arc-shaped grooves perpendicular to the water inlet direction are distributed on one surface of the guide plate facing the catalyst inlet, and the depth of each arc-shaped groove is gradually deepened from one side close to the side wall of the tank body to the other side; a plurality of arc-shaped ribs II vertical to the water inlet direction are distributed on one surface of the guide plate back to the catalyst inlet, and the protruding height of each arc-shaped rib II is gradually reduced from one side close to the side wall of the tank body to the other side.
The grit chamber comprises a separation cavity and a sand collection cavity at the bottom of the separation cavity, the lower part of the separation cavity is contracted inwards to form an inclined plane connected with the top of the sand collection cavity, and the included angle between the inclined plane and the horizontal plane is not less than 55 degrees; the separation cavity is internally provided with a stirring shaft driven by a transmission mechanism, the bottom of the stirring shaft is provided with stirring blades, the stirring blades are positioned at the bottom of the separation cavity, two side walls of the separation cavity are respectively provided with a water inlet II and a purified water outlet, and the bottom of the sand collection cavity is provided with a sand outlet.
The purification treatment system is also provided with an ultrasonic cleaning device formed by connecting at least two groups of ultrasonic cleaning tanks in series, and an inlet pipe and an outlet pipe of the ultrasonic cleaning device are respectively connected with a sand outlet of the grit chamber and a catalyst inlet on the catalytic reaction tank.
In the invention, the catalyst introduced into the catalyst inlet of the catalytic reaction tank is Fe 2 O 3 A/ZSM-5 catalyst, the catalyst being prepared by the following process: ZSM-5 molecular sieve with the silicon-aluminum ratio of 140 is soaked in 0.5mol/L Fe 2 (SO 4 ) 3 Adding dilute sulphuric acid with the molar concentration of 1mol/L into the mixture, wherein the impregnation time is 8 hours, and each gram of ZSM-5 molecular sieve corresponds to 8ml of ferric sulfate solution and 0.5ml of dilute sulphurAcid, drying at a constant temperature of 50 ℃ after impregnation, and finally calcining at 800 ℃ for 4h to obtain the catalyst.
The reaction in the catalytic reaction tank is a heterogeneous Fenton-like system, namely Fe 2 O 3 Loaded on ZSM-5 molecular sieve carrier to catalyze H 2 O 2 OH with strong oxidizing capability is generated to carry out oxidative degradation on the dye wastewater, so that loss and secondary pollution caused by difficulty in separation of iron ions and a reaction medium in a homogeneous Fenton system are avoided, and the catalyst can be recycled through simple ultrasonic cleaning. Meanwhile, the system is free from additional energy input such as illumination, microwave, electricity, ultrasound and the like, is a simple, mild and efficient wastewater treatment system, and is particularly suitable for treating strongly basic dye wastewater. In addition, the biodegradability of the effluent quality of the unit is strong, and the unit can be combined with a biodegradation unit in a modularized mode.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention has the advantages of simple operation, mild condition, low cost, low energy consumption, no secondary pollution and the like, can efficiently treat the common alkaline dye wastewater in the printing and dyeing industry, and can compatibly treat the wastewater under neutral and acidic conditions;
2) according to the homogenizing tank, the water inlet pipe and the water outlet pipe are separated and then communicated through the arc-shaped communicating pipe, so that water entering the arc-shaped communicating pipe through the water inlet pipe firstly reaches the water outlet pipe, and water entering the arc-shaped communicating pipe through the water inlet pipe finally reaches the water outlet pipe, and the aim of homogenizing wastewater without any additional equipment is fulfilled;
3) according to the invention, the split wedge is arranged in the water inlet pipe, so that the wastewater is divided into two parts which are respectively converged into the water outlet pipe through the arc communicating pipes on the two sides, thus the water flow is more uniform through the arc communicating pipes on the two sides, and the arc convex edges I are arranged on the surface of the split wedge and can be matched with the pipe walls on the two sides, so that the wastewater enters the arc communicating pipes in a turbulent flow manner, and the homogenization effect is further improved;
4) according to the invention, a plurality of groups of elastic components consisting of the tightening steel wires and the oscillation components are arranged in the water outlet pipe, so that wastewater entering the water outlet pipe from the arc-shaped communicating pipe can impact the wing plates of the oscillation components, the whole elastic components are driven to vibrate to a certain degree, and the stirring and homogenizing effects on the wastewater in the water outlet pipe are achieved; moreover, the surface of the tightening steel wire is provided with the bulges, so that the stirring and homogenizing effects are enhanced;
5) according to the invention, the plurality of parallel spiral depressions are arranged on the inner wall surface of the arc-shaped communicating pipe, and the screwing direction of the spiral depressions is the same as the water flow direction, so that the wastewater can collide with the spiral depressions in the flowing process, a certain stirring effect is achieved, and the spiral depressions also have a certain diversion and uniform mixing effect;
6) according to the invention, the plurality of water inlets I are arranged on the two sides of the catalytic reaction tank, so that wastewater is supplied in a segmented manner, and the influence on the degradation effect and the service life of the catalyst due to catalyst poisoning caused by overhigh local concentration is avoided; a plurality of guide plates which are arranged in a special way are arranged in the catalytic reaction tank, so that the waste water forms turbulent flow when flowing in the catalytic reaction tank, and the diffusion and mass transfer of a catalyst and reactants are facilitated; one surface of the guide plate, which faces the catalyst inlet, is provided with an arc-shaped groove, and the other surface of the guide plate is provided with an arc-shaped convex rib II, so that the turbulence effect is enhanced to a great extent;
7) the reaction in the catalytic reaction tank is a heterogeneous Fenton-like system, namely Fe 2 O 3 Loaded on ZSM-5 molecular sieve carrier for catalyzing H 2 0 2 OH with strong oxidizing capability is generated to carry out oxidative degradation on the dye wastewater, so that the loss and secondary pollution of a homogeneous Fenton system caused by the difficulty in separation of iron ions and a reaction medium are avoided, the catalyst can be recycled by simple ultrasonic cleaning, and the additional energy input of illumination, microwaves, electricity, ultrasound and the like is avoidedThe wastewater treatment system is particularly suitable for treating strong alkaline dye wastewater.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a homogenizing tank;
FIG. 3 is a schematic structural view of an elastic component in the water outlet pipe;
FIG. 4 is a schematic structural view of a split wedge;
FIG. 5 is a schematic view of a baffle configuration;
reference numerals: 1. homogenizing pool, 101, inlet tube, 102, outlet pipe, 103, arc communicating pipe, 104, hydrogen peroxide solution inlet pipe, 105, reposition of redundant personnel wedge, 1051, arc bead I, 1052, arc arris, 106, elastic component, 1061, tightening steel wire, 1062, adapter sleeve, 1063, wing panel, 2, catalytic reaction pond, 201, water inlet I, 202, guide plate, 2021, arc recess, 2022, arc bead II, 203, catalyst inlet, 204, outlet I, 3, grit chamber, 301, drive mechanism, 302, sorting chamber, 303, clean water outlet, 304, water inlet II, 305, stirring vane, 306, sand collecting chamber, 307, sand outlet, 4, ultrasonic cleaning device, 401, ultrasonic cleaning pond, 402, inlet pipe, 403, outlet pipe.
Detailed Description
As shown in the figure, in the purification treatment system for the basic dye wastewater, the basic dye wastewater to be treated is subjected to homogenization in a homogenizing tank 1, reaction in a catalytic reaction tank 2 and sedimentation in a grit chamber 3 in sequence to complete purification treatment, wherein the homogenizing tank 1 comprises a water inlet pipe 101 and a water outlet pipe 102 which are positioned on the same straight line but are not directly communicated, one end of the water inlet pipe 101 is closed, the other end of the water inlet pipe is a basic dye wastewater inlet, one end of the water outlet pipe 102 is communicated with the catalytic reaction tank 2, and the other end of the water outlet pipe is communicated with a hydrogen peroxide inlet pipe 104; a plurality of through holes are evenly distributed on the two sides of the pipe wall of the water inlet pipe 101 and the water outlet pipe 102 along the length direction of the pipe wall, any through hole on one side of the water inlet pipe 101 is communicated with the corresponding through hole on the same side of the pipe wall of the water outlet pipe 102 through the arc-shaped communication pipe 103 to form a plurality of arc-shaped water flow channels distributed on the two sides of the water inlet pipe 101 and the water outlet pipe 102, and the lengths of the arc-shaped water flow channels are gradually shortened from the water inlet of the water inlet pipe 101 to the direction of the other end, so that the sewage firstly entering the arc-shaped communication pipe 103 through the water inlet pipe 101 finally reaches the water outlet pipe 102, and the sewage finally entering the arc-shaped communication pipe 103 through the water inlet pipe 101 firstly reaches the water outlet pipe 102.
The above is the basic implementation mode of the invention, and further improvement, optimization and limitation can be made on the basis of the above:
if, a splitting wedge 105 which divides the interior of the water inlet pipe 101 into two parts is arranged in the water inlet pipe 101, and through holes on pipe walls on two sides of the water inlet pipe 101 are respectively positioned on two sides of the splitting wedge 105, the bottom of the splitting wedge 105 is fixed on the closed end of the water inlet pipe 101, the thickness of the splitting wedge 105 is gradually reduced from the bottom to the other end, so that two inclined planes are formed on two sides of the splitting wedge, a plurality of rows of arc-shaped convex edges I1051 are distributed on the two inclined planes, the height of the protrusion of the arc-shaped convex edge I1051 is gradually increased from the free end of the splitting wedge 105 to the bottom end, the end part of the free end of the splitting wedge 105 is provided with an arc-shaped edge 1052 which protrudes towards the water inlet direction, two sides of the arc-shaped edge 1052 exceed the splitting wedge 105, so that a clamping platform which is opposite to the water flow direction is formed at the joint of the two sides, and the height of the clamping platform is lower than the height of the protrusion of the row of the arc-shaped convex edge I1051 which is closest to the clamping platform;
for another example, a plurality of groups of elastic assemblies 106 are arranged in the water outlet pipe 102, each group of elastic assemblies 106 includes a tightening steel wire 1061 fixed at the water outlet port of the arc-shaped communication pipe 103, two ends of the tightening steel wire 1061 are obliquely fixed on the inner wall of the water outlet pipe 102, at least one group of oscillation assemblies are arranged on the tightening steel wire 1061, each group of oscillation assemblies includes a fastening sleeve 1062 fixed on the tightening steel wire 1061 and wing plates 1063 symmetrically arranged at two sides of the fastening sleeve 1062, and the wing plates 1063 are opposite to the water outlet port of the arc-shaped communication pipe 103, so that the water flow entering the water outlet pipe 102 through the arc-shaped communication pipe 103 impacts the surface of the wing plates 1063;
furthermore, protrusions are densely distributed on the surface of the tightening steel wire 1061;
for another example, a plurality of parallel spiral depressions are distributed on the inner wall surface of the arc-shaped communicating pipe 103, and the screwing direction of the spiral depressions is the same as the water flow direction;
for another example, the through holes on the two sides of the pipe walls of the water inlet pipe 101 and the water outlet pipe 102 are staggered, so that the homogenization effect can be further enhanced by utilizing the staggered opposite flushing of water flows on the two sides;
for another example, the catalytic reaction tank 2 comprises a rectangular tank body, a catalyst inlet 203 and a water outlet I204 are respectively arranged at two ends of the tank body, a plurality of water inlets I201 are distributed on the side walls at two sides of the tank body, and each water inlet I201 is communicated with a pipeline communicated with a water outlet pipe 102 of the homogenizing tank 1 through a branch pipe; a plurality of guide plates 202 are respectively arranged on the inner walls of the two sides of the tank body, and the guide plates 202 are inclined towards one side of the catalyst inlet 203, and the inclination angle is 80-85 degrees with the side wall of the tank body; the projection of the flow guide plate 202 on the side wall of the tank body partially coincides with the projection of a connecting line between two water inlets i 201 which are adjacent to the flow guide plate 202 and located on different sides of the tank body (as shown in fig. 1, three water inlets i 201 are located at two sides of the root of a certain flow guide plate 202, two water inlets i 201 are located at the closest to the free end of the certain flow guide plate, the connecting lines of the three water inlets i 201 form a triangle which surrounds the flow guide plate 202, and at this time, the projection of the flow guide plate 202 on one side wall of the tank body partially coincides with the projection of two sides of the triangle located at two sides of the flow guide plate on the side wall, and cannot be completely coincident);
furthermore, a plurality of arc grooves 2021 perpendicular to the water inlet direction are distributed on one surface of the guide plate 202 facing the catalyst inlet 203, and the depth of the arc grooves 2021 is gradually deepened from one side close to the side wall of the tank body to the other side; a plurality of arc-shaped convex edges II 2022 vertical to the water inlet direction are distributed on one surface of the guide plate 202 back to the catalyst inlet 203, and the convex height of the arc-shaped convex edges II 2022 is gradually reduced from one side close to the side wall of the tank body to the other side;
for another example, the grit chamber 3 includes a separation chamber 302 and a sand collection chamber 306 at the bottom of the separation chamber 302, and the lower part of the separation chamber 302 is contracted inwards to form an inclined plane connected with the top of the sand collection chamber 306, and the included angle between the inclined plane and the horizontal plane is not less than 55 degrees; a stirring shaft driven by a transmission mechanism 301 is arranged in the sorting cavity 302, the bottom of the stirring shaft is provided with stirring blades 305, the stirring blades 305 are positioned at the bottom of the sorting cavity 302, two side walls of the sorting cavity 302 are respectively provided with a water inlet II 304 and a purified water outlet 303, and the bottom of the sand collecting cavity 306 is provided with a sand outlet 307;
finally, the purification treatment system is also provided with an ultrasonic cleaning device 4 formed by connecting at least two groups of ultrasonic cleaning tanks 401 in series, and an inlet pipe 402 and an outlet pipe 403 of the ultrasonic cleaning device 4 are respectively connected with a sand outlet 307 of the grit chamber 3 and a catalyst inlet 203 on the catalytic reaction tank 2.
In the invention, the average hydraulic retention time of the sewage in the homogenizing pool 1 is 4-12h, and the capacity is designed according to the treated water quantity. The hydrogen peroxide solution inlet pipe 104 enters the back pass of the homogenizing pool 1 and is premixed with the dye wastewater, and the water outlet pipe 102 is sequentially connected with a plurality of water inlets I201 of the downstream catalytic reaction pool 2 through a conveying pipeline; so that sewage enters the catalytic reaction tank 2 from a plurality of water inlets I201 in strands, and the influence on the degradation effect and the service life of the catalyst due to catalyst poisoning caused by overhigh local concentration is avoided; the guide plates 202 are inclined towards one side of the catalyst inlet 203, the inclination angle is 80-85 degrees with the side wall of the tank body, so that turbulent flow is formed to be beneficial to diffusion and mass transfer, the hydraulic retention time in the catalytic reaction tank 2 is 10-30min, and a water outlet I204 of the catalytic reaction tank 2 is connected with a water inlet II 304 of a sorting cavity 302 of a downstream grit chamber 3 through a conveying pipeline;
the catalyst used in the invention is Fe 2 O 3 A/ZSM-5 catalyst, which is prepared by the following method: ZSM-5 molecular sieve with the silicon-aluminum ratio of 140 is impregnated in 0.5mol/L Fe 2 (SO 4 ) 3 Adding dilute sulfuric acid with the molar concentration of 1mol/L into the mixture, soaking for 8 hours, wherein each gram of ZSM-5 molecular sieve corresponds to 8ml of ferric sulfate solution and 0.5ml of dilute sulfuric acid, drying at the constant temperature of 50 ℃ after soaking, and finally calcining at the temperature of 800 ℃ for 4 hours to obtain the catalyst;
the lower part of the sorting cavity 302 at the upper part of the grit chamber 3 is contracted inwards to form an inclined plane connected with the top of the sand collecting cavity 306, the included angle between the inclined plane and the horizontal plane is not less than 55 degrees, the rotating speed of the stirring blade 305 is 5-10r/min, the hydraulic retention time is 30-60s, and the purified water outlet 303 can be connected with other advanced treatment modules such as a biological filter, a reverse osmosis device and the like, so that the quality of the outlet water is further improved. The sand outlet 307 for recovering the catalyst is connected with the inlet of the ultrasonic cleaning device 4 through a conveying pipeline;
the ultrasonic cleaning device 4 is formed by connecting at least two groups of ultrasonic cleaning tanks 401 in series, cleaning media in the ultrasonic cleaning tanks 401 can select solvents with different polarities according to different dye properties, or can select water as the cleaning media, and an outlet pipe 403 is connected with a catalyst inlet 203 of the catalytic reaction tank 2 through a conveying pipeline, so that the cleaned catalyst can enter the system again for reuse.
The invention is further illustrated by the following examples.
Example 1
As shown in fig. 1, the present embodiment is composed of an annular homogenizing tank 1, a catalytic reaction tank 2, a grit chamber 3, and a purification treatment system. The acid bright red dye wastewater enters an annular homogenizing pool 1 from a water inlet pipe 101, and the hydraulic retention time is 4 hours; 30wt.% of H 2 O 2 The hydrogen peroxide enters the back pass of the annular homogenizing pool 1 (namely the water outlet pipe 102) through a hydrogen peroxide inlet pipe 104, the hydrogen peroxide and the hydrogen peroxide are premixed and then enter the catalytic reaction pool 2 in strands, the recycled catalyst inlet 203 enters the catalytic reaction pool 2, and the retention time is 20 min. And (3) performing liquid-solid separation on the degraded effluent in the grit chamber 3, wherein the rotating speed of an impeller is 5r/min, the hydraulic retention time is 45S, and the clarified effluent flows out from a purified water outlet 303 where sampling detection can be performed. The separated catalyst enters a purification treatment system to be purified by H 2 And O is cleaning agent for cleaning, recovering and recycling.
Preparation of Fe by impregnation 2 O 3 the/ZSM-5 catalyst detects the concentration of iron ions in a reaction system according to an o-phenanthroline method, and the concentration of the iron ions is 1.6 multiplied by 10 under the conditions of strong acid and strong alkali respectively -6 mol/L and 0.4X 10 -6 In mol/L, dissolved iron ions are few, which shows that the catalyst exists in a heterogeneous state, the effect of the iron ions is negligible, and in addition, the Fenton reagent can be deactivated under alkaline conditions 2 O 3 ZSM-5 catalysis of H 2 O 2 Produced rather than allFenton reaction of the phases.
The concentration of the acid bright red dye wastewater is 1kg/t, 30wt.% of H 2 O 2 The adding amount is 2kg/t, the adding amount of the catalyst is 2.5kg/t, the catalyst can be recycled, and the pH value is 12. The degradation rate of acid bright red is 99.5% by spectrophotometry.
Example 2
The unit operation and catalyst were the same as in example 1;
the concentration of the acid bright red dye wastewater is 1kg/t, 30wt.% H 2 O 2 The adding amount is 2kg/t, the adding amount of the catalyst is 2.5kg/t, the catalyst can be recycled, and the pH value is 10. The degradation rate of acid scarlet is 65.6% measured by sampling the effluent by a spectrophotometric method.
Example 3
The unit operation and catalyst were the same as in example 1;
the concentration of the acid bright red dye wastewater is 1kg/t, 30wt.% H 2 O 2 The adding amount is 2kg/t, the adding amount of the catalyst is 2.5kg/t, the catalyst can be recycled, and the pH value is 7. The degradation rate of acid bright red is 22.3% by spectrophotometry. The retention time of the sewage in the catalytic reaction tank 2 is prolonged to 30min, and the acid bright red degradation rate is 30.1%. Higher degradation rates can be achieved if the residence time is further extended.
Example 4
The unit operation and catalyst were the same as in example 1;
the concentration of the acid bright red dye wastewater is 1kg/t, 30wt.% H 2 O 2 The adding amount is 2kg/t, the adding amount of the catalyst is 2.5kg/t, the catalyst can be recycled, and the pH value is 3. The degradation rate of acid bright red is 74.4% by using a spectrophotometric method for sampling, which shows that the system has good degradation effect under an acid condition.
Example 5
The unit operation was the same as in example 1;
the concentration of the acid bright red dye wastewater is 1kg/t, 30wt.% H 2 O 2 The adding amount is 2kg/t, the catalyst is recycled catalyst after 10 times of recycling, the adding amount is 2.5kg/t, and the pH value is 12. The degradation rate of acid bright red is 90.9 percent by sampling and measuring the effluent by a spectrophotometry,the service life of the catalyst proved to be longer.

Claims (8)

1. The utility model provides a purification treatment system of basic dyestuff waste water, the basic dyestuff waste water that treats handles accomplishes purification treatment, its characterized in that after homogeneity pond (1) homogeneity, catalytic reaction pond (2) reaction and grit chamber (3) subside in proper order: the homogenizing tank (1) comprises a water inlet pipe (101) and a water outlet pipe (102) which are positioned on the same straight line but are not directly communicated, one end of the water inlet pipe (101) is closed, the other end of the water inlet pipe is a basic dye wastewater inlet, one end of the water outlet pipe (102) is communicated with the catalytic reaction tank (2), and the other end of the water outlet pipe is communicated with a hydrogen peroxide inlet pipe (104); a plurality of through holes are uniformly distributed on two sides of the pipe wall of the water inlet pipe (101) and the water outlet pipe (102) along the length direction of the pipe wall, any through hole on one side of the water inlet pipe (101) is communicated with a corresponding through hole on the same side of the pipe wall of the water outlet pipe (102) through an arc-shaped communication pipe (103) to form a plurality of arc-shaped water flow channels distributed on two sides of the water inlet pipe (101) and the water outlet pipe (102), and the lengths of the arc-shaped water flow channels are gradually shortened from the water inlet of the water inlet pipe (101) to the other end, so that the sewage firstly entering the arc-shaped communication pipe (103) through the water inlet pipe (101) finally reaches the water outlet pipe (102), and the sewage finally entering the arc-shaped communication pipe (103) through the water inlet pipe (101) firstly reaches the water outlet pipe (102);
a flow splitting wedge (105) which divides the interior of the water inlet pipe (101) into two parts is arranged in the water inlet pipe, and the through holes on the pipe walls at the two sides of the water inlet pipe (101) are respectively positioned at the two sides of the split wedge (105), the bottom of the splitter wedge (105) is fixed on the closed end of the water inlet pipe (101), and the thickness of the splitter wedge is gradually reduced from the bottom to the other end so as to form two inclined planes on two sides of the splitter wedge, a plurality of rows of arc-shaped ribs I (1051) are distributed on the two inclined planes, the convex height of the arc-shaped ribs I (1051) gradually rises from the free end of the splitter wedge (105) to the bottom end, the end part of the free end of the splitter wedge (105) is provided with an arc-shaped edge (1052) protruding towards the water inlet direction, and the two sides of the arc-shaped edge (1052) exceed the splitter wedge (105), so that a clamping table facing away from the water flow direction is formed at the joint of the two, and the height of the bulge of the clamping table is lower than that of a row of arc-shaped convex ribs I (1051) closest to the clamping table;
a plurality of groups of elastic assemblies (106) are arranged in the water outlet pipe (102), each group of elastic assemblies (106) comprises a tightening steel wire (1061) fixed at the position of the water outlet port of the arc-shaped communicating pipe (103), at least one group of oscillating assemblies are arranged on the tightening steel wire (1061), each group of oscillating assemblies comprises a fastening sleeve (1062) fixed on the tightening steel wire (1061) and wing plates (1063) symmetrically arranged at two sides of the fastening sleeve (1062), and the wing plates (1063) are opposite to the water outlet port of the arc-shaped communicating pipe (103), so that water entering the water outlet pipe (102) through the arc-shaped communicating pipe (103) impacts the surface of the wing plates (1063).
2. The system for purifying and treating basic dye wastewater as set forth in claim 1, wherein: a plurality of parallel spiral depressions are distributed on the inner wall surface of the arc-shaped communicating pipe (103), and the screwing direction of the spiral depressions is the same as the water flow direction.
3. The system for purifying and treating basic dye wastewater as claimed in claim 1, wherein: the through holes on the two sides of the pipe wall of the water inlet pipe (101) and the pipe wall of the water outlet pipe (102) are staggered.
4. The system for purifying and treating basic dye wastewater as claimed in claim 1, wherein: the catalytic reaction tank (2) comprises a rectangular tank body, a catalyst inlet (203) and a water outlet I (204) are respectively arranged at two ends of the tank body, a plurality of water inlets I (201) are distributed on the side walls of two sides of the tank body, and each water inlet I (201) is communicated with a pipeline communicated with a water outlet pipe (102) of the homogenizing tank (1) through a branch pipe; a plurality of guide plates (202) are respectively arranged on the inner walls of the two sides of the tank body, the guide plates (202) are inclined towards one side of the catalyst inlet (203), and the inclination angle is 80-85 degrees with the side wall of the tank body; the projection of the flow guide plate (202) on the side wall of the tank body is partially overlapped with the projection of a connecting line between two water inlets I (201) which are close to the flow guide plate (202) and are positioned on the opposite side of the tank body.
5. The system for purifying and treating basic dye wastewater as claimed in claim 4, wherein: a plurality of arc grooves (2021) vertical to the water inlet direction are distributed on one surface of the guide plate (202) facing the catalyst inlet (203), and the depth of the arc grooves (2021) is gradually deepened from one side close to the side wall of the tank body to the other side; a plurality of arc ribs II (2022) vertical to the water inlet direction are distributed on the surface of the guide plate (202) back to the catalyst inlet (203), and the protruding height of the arc ribs II (2022) is gradually reduced from one side close to the side wall of the tank body to the other side.
6. The system for purifying and treating basic dye wastewater as claimed in claim 4, wherein: the catalyst introduced into the catalyst inlet (203) is Fe 2 O 3 A catalyst of the/ZSM-5 type, which is obtainable by a process comprising: ZSM-5 molecular sieve with the silicon-aluminum ratio of 140 is impregnated in 0.5mol/L Fe 2 (SO 4 ) 3 Adding dilute sulfuric acid with the molar concentration of 1mol/L into the mixture, soaking for 8 hours, wherein each gram of ZSM-5 molecular sieve corresponds to 8ml of ferric sulfate solution and 0.5ml of dilute sulfuric acid, drying at the constant temperature of 50 ℃ after soaking, and finally calcining at the temperature of 800 ℃ for 4 hours to obtain the catalyst.
7. The system for purifying and treating basic dye wastewater as claimed in claim 1, wherein: the grit chamber (3) comprises a sorting cavity (302) and a sand collecting cavity (306) at the bottom of the sorting cavity (302), the lower part of the sorting cavity (302) is inwards contracted to form an inclined plane connected with the top of the sand collecting cavity (306), and the included angle between the inclined plane and the horizontal plane is not less than 55 degrees; the sand separation device is characterized in that a stirring shaft driven by a transmission mechanism (301) is arranged in the separation cavity (302), stirring blades (305) are arranged at the bottom of the stirring shaft, the stirring blades (305) are located at the bottom of the separation cavity (302), two side walls of the separation cavity (302) are respectively provided with a water inlet II (304) and a purified water outlet (303), and a sand outlet (307) is arranged at the bottom of the sand collection cavity (306).
8. The system for purifying and treating basic dye wastewater as claimed in claim 1, wherein: the purification treatment system is also provided with an ultrasonic cleaning device (4) formed by connecting at least two groups of ultrasonic cleaning tanks (401) in series, and an inlet pipe (402) and an outlet pipe (403) of the ultrasonic cleaning device (4) are respectively connected with a sand outlet (307) of the grit chamber (3) and a catalyst inlet (203) on the catalytic reaction tank (2).
CN201611152361.3A 2016-12-14 2016-12-14 Purification treatment system of basic dye waste water Active CN106495311B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611152361.3A CN106495311B (en) 2016-12-14 2016-12-14 Purification treatment system of basic dye waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611152361.3A CN106495311B (en) 2016-12-14 2016-12-14 Purification treatment system of basic dye waste water

Publications (2)

Publication Number Publication Date
CN106495311A CN106495311A (en) 2017-03-15
CN106495311B true CN106495311B (en) 2022-08-23

Family

ID=58330066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611152361.3A Active CN106495311B (en) 2016-12-14 2016-12-14 Purification treatment system of basic dye waste water

Country Status (1)

Country Link
CN (1) CN106495311B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706771A (en) * 2018-06-08 2018-10-26 昆明理工大学 A kind of processing method of the waste water containing xanthate
CN110683654B (en) * 2019-08-09 2022-03-22 浙江海洋大学 High-efficient whole autotrophic nitrogen removal device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100661815B1 (en) * 2006-01-09 2006-12-27 오영한 The sewage treatment system
CN102964005A (en) * 2012-11-29 2013-03-13 绍兴县江滨水处理有限公司 Deep treatment method for printing and dyeing wastewater
CN103157504A (en) * 2011-12-12 2013-06-19 江南大学 Novel mesoporous Fe2O3-SnO2-ZSM-5 solid acid prepared by impregnation method, and application study for catalyzing degradation of organic pollutants
CN103214079A (en) * 2013-04-27 2013-07-24 华南理工大学 Bidirectional flow internal circulation type PS advanced oxidation reactor and sewage treatment method
CN203855449U (en) * 2014-04-11 2014-10-01 重庆市亚太水工业科技有限公司 Drinking water pretreating pond
CN104556502A (en) * 2013-10-22 2015-04-29 中国石油化工股份有限公司 Treatment device for degradation-resistant waste water and waste water treatment method thereof
CN104628229A (en) * 2015-02-05 2015-05-20 四川立新瑞德水处理有限责任公司 Deep chemical wastewater treatment system and process
CN105217885A (en) * 2015-09-22 2016-01-06 张家港市格锐环境工程有限公司 A kind for the treatment of system of dyeing and printing auxiliary factory effluent and treatment process
CN204981436U (en) * 2015-07-22 2016-01-20 广西博世科环保科技股份有限公司 Fragrant combination formula reaction unit of little electrolysis
CN205241344U (en) * 2015-12-24 2016-05-18 山东黄河三角洲纺织科技研究院有限公司 Handle printing and dyeing wastewater's anaerobic reactor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103408127B (en) * 2008-05-20 2016-06-01 北京汉青天朗水处理科技有限公司 A kind of waste disposal plant

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100661815B1 (en) * 2006-01-09 2006-12-27 오영한 The sewage treatment system
CN103157504A (en) * 2011-12-12 2013-06-19 江南大学 Novel mesoporous Fe2O3-SnO2-ZSM-5 solid acid prepared by impregnation method, and application study for catalyzing degradation of organic pollutants
CN102964005A (en) * 2012-11-29 2013-03-13 绍兴县江滨水处理有限公司 Deep treatment method for printing and dyeing wastewater
CN103214079A (en) * 2013-04-27 2013-07-24 华南理工大学 Bidirectional flow internal circulation type PS advanced oxidation reactor and sewage treatment method
CN104556502A (en) * 2013-10-22 2015-04-29 中国石油化工股份有限公司 Treatment device for degradation-resistant waste water and waste water treatment method thereof
CN203855449U (en) * 2014-04-11 2014-10-01 重庆市亚太水工业科技有限公司 Drinking water pretreating pond
CN104628229A (en) * 2015-02-05 2015-05-20 四川立新瑞德水处理有限责任公司 Deep chemical wastewater treatment system and process
CN204981436U (en) * 2015-07-22 2016-01-20 广西博世科环保科技股份有限公司 Fragrant combination formula reaction unit of little electrolysis
CN105217885A (en) * 2015-09-22 2016-01-06 张家港市格锐环境工程有限公司 A kind for the treatment of system of dyeing and printing auxiliary factory effluent and treatment process
CN205241344U (en) * 2015-12-24 2016-05-18 山东黄河三角洲纺织科技研究院有限公司 Handle printing and dyeing wastewater's anaerobic reactor

Also Published As

Publication number Publication date
CN106495311A (en) 2017-03-15

Similar Documents

Publication Publication Date Title
CN106430790B (en) A kind of method and its application reducing permanent violet technique waste water COD
CN101525202A (en) Advanced dyeing wastewater treatment and reclaimed water reuse system and method thereof
CN102120663B (en) Coking wastewater advanced treatment system and process
CN106495311B (en) Purification treatment system of basic dye waste water
CN109775893B (en) Persulfate step oxidation coupling membrane filtration water purification device and operation method thereof
CN106495359A (en) A kind of highly difficult advanced waste treatment apparatus and method
CN111170458A (en) Two-stage AO efficient nitrogen and phosphorus removal sewage treatment process
CN205045948U (en) Petrochemical is efficient handling of discharging equipment for sewage
CN113800712B (en) High-salt nitrogen-containing organic wastewater recycling and safe discharging integrated equipment
CN209098459U (en) A kind of high gravity fermentation class antibiotic waste water processing system
CN201962109U (en) Coagulation-sedimentation equipment
CN105384230A (en) Cellulose wastewater pretreatment apparatus and application thereof
Stern et al. Anaerobic treatment of textile dyeing wastewater
CN206328200U (en) A kind of cleaning treatment system of basic-dyeable fibre waste water
CN210457807U (en) High-efficient ozone catalytic oxidation advanced treatment unit of printing and dyeing wastewater
CN115367877A (en) Continuous circulating flow biological nitrogen and phosphorus removal reactor and method
CN215208662U (en) Novel it is mainly to advanced treatment of pharmacy and agro-chemical industry class waste water device
CN210656586U (en) Wastewater treatment device based on combination of MBR and ozone multi-point addition
CN110563223A (en) process method for treating difficultly degraded COD (chemical oxygen demand) in produced water of high-sulfur-content gas field
CN208791393U (en) A kind of processing unit of composite waste containing phosphamidon
CN110015807B (en) Enhanced denitrification reactor for deep denitrification and deep denitrification method thereof
CN208717115U (en) A kind for the treatment of of dyeing wastewater reclamation set
CN201809262U (en) Optimized integrated device for high effective biological and advanced treatment of garbage leachate
CN104045210B (en) The treatment for reuse method of oil refining-Ethylene Complex unit sewage
CN112759064A (en) Ozone catalytic oxidation system and treatment method of coal chemical industry concentrated solution

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant