CN207375897U - A kind of hazardous waste materializing strategy system - Google Patents
A kind of hazardous waste materializing strategy system Download PDFInfo
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- CN207375897U CN207375897U CN201721109881.6U CN201721109881U CN207375897U CN 207375897 U CN207375897 U CN 207375897U CN 201721109881 U CN201721109881 U CN 201721109881U CN 207375897 U CN207375897 U CN 207375897U
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Abstract
The utility model is related to hazardous waste technical field, more particularly to a kind of hazardous waste materializing strategy system.The hazardous waste materializing strategy system includes storage element, combined reaction unit, flocculation sediment unit, demulsification unit, air flotation cell and filter-press dehydration unit.The system also includes advanced oxidation unit, advanced treatment unit, evaporation element and biochemical treatment units.
Description
Technical field
The utility model is related to hazardous waste technical field, more particularly to a kind of hazardous waste materializing strategy system.
Background technology
Hazardous waste species is various, complicated component, and property fluctuation is big.The technology used both at home and abroad at present mainly has heat treatment
Mode, materializing strategy, comprehensive utilization and curing landfill.For low heat value, the liquid hazardous waste of low cod value frequently with materialization at
Reason.However materializing strategy technique is with strong points, is confined to hazardous waste similar in single process dangerous waste or property more.
When hazardous waste species or property fluctuate, single physicochemical techniques are present with the poor processing effect even feelings of systemic breakdown
Condition since Traditional materialized Technological adaptability is poor, causes existing dangerous waste disposal center a large amount of materializing strategy facilities occur and is idle
The phenomenon that.
Chinese patent CN102344214B discloses a kind of dangerous waste liquid materialization total system, which includes waste liquid
Storage tank, paper tape filter, quenched slot, four pharmacy slots, three with the reaction kettles of blender, tail gas absorption groove, buffering flow container,
Water sprays vacuum pump set, centrifuge, suction strainer slot, film process device, filter press, filtrate collecting pit, two waste liquid medial launders, body refuse are received
Ji Chi and wastewater equalization pond.Between each processing unit of this method can flexible switching combining, to be suitable for a variety of dangerous waste liquids
Materialization integrated treatment includes acid-base neutralization, coagulating sedimentation, redox, desalination, separation of solid and liquid and tail gas clean-up processing etc..It but should
Method does not carry out classification processing to different hazardous wastes.In addition, the system is not comprising demulsification, air flotation cell, it is impossible to useless breast
Change liquid, waste mineral oil is effectively treated.
Chinese patent CN105439386A discloses a kind of method and dress of the disposal of hazardous waste physicochemical treatment unit depth
It puts, including：Pretreatment unit, press filtration/filter device；Vaporising device, biochemical treatment apparatus.The multiple pretreatment dresses of this method configuration
It puts, each pretreatment unit can flexibly switch, while handle a variety of hazardous wastes.But this method, which has been simple, describes materialization
The method of processing, composition to materializing strategy core cell-pretreatment system and how switching are not described later in detail.
Utility model content
The utility model is for the deficiency of the bad adaptability of current hazardous waste materializing strategy technology, it is proposed that modularization,
Meshing materializing strategy technology carries out classification centralized processing to different types of hazardous waste, passes through the netted of modules
Connection realizes the flexible combination of unit, forms multiple combinations process system, effectively increases the processing energy of physicochemical techniques
Power reduces processing cost, realizes liquid waste processing qualified discharge or reuse.
The utility model provides a kind of hazardous waste materializing strategy system, including
For by the storage element of hazardous waste raw material classified storage, for carry out acid-base neutralization reaction, reduction reaction and
The combined reaction unit of chemical precipitation, flocculation sediment unit, be demulsified unit, air flotation cell and filter-press dehydration unit；
The storage element includes more than one storage container, the storage container and combined reaction unit, flocculation sediment
At least one unit in unit, demulsification unit is connected, for providing hazardous waste raw material at least one unit；And institute
State the downstream that combined reaction unit, flocculation sediment unit, demulsification unit are respectively positioned on the storage element；
The combined reaction unit is connected with the flocculation sediment unit and is located at the upstream of the flocculation sediment unit, institute
It states demulsification unit with the flocculation sediment unit to be connected and be located at the upstream of the flocculation sediment unit, unit and the gas of being demulsified
Floating unit is connected and is located at the upstream of the air flotation cell, and entrance phase of the outlet of the air flotation cell also with the unit that is demulsified
Even, the flocculation sediment unit is connected with the filter-press dehydration unit and is located at the upstream of the filter-press dehydration unit.
An embodiment according to the present utility model, hazardous waste materializing strategy system according to the present utility model are also wrapped
Include advanced oxidation unit, for removing the advanced treatment unit of heavy metal in waste liquid ion and suspended particulate, evaporation element and life
Change processing unit；
The filter-press dehydration unit is connected with the evaporation element and is located at the upstream of the evaporation element, and the press filtration takes off
Water unit is connected with the advanced treatment unit and is located at the upstream of the advanced treatment unit, the filter-press dehydration unit and institute
State the upstream that advanced oxidation unit is connected and is located at the advanced oxidation unit, the filter-press dehydration unit and the biochemical treatment
Unit is connected and is located at the upstream of the biochemical treatment unit；
The evaporation element is connected with the advanced treatment unit and is located at the upstream of the advanced treatment unit, the steaming
The first upstream being connected with the biochemical treatment unit and be located at the biochemical treatment unit of bill；
The advanced treatment unit is connected with the biochemical treatment unit and is located at the upstream of the biochemical treatment unit；
The advanced oxidation unit is connected with the evaporation element and is located at the upstream of the evaporation element, the advanced oxygen
Change unit with the biochemical treatment unit to be connected and be located at the upstream of the biochemical treatment unit, the advanced oxidation unit and institute
The downstream that air flotation cell is connected and is located at the air flotation cell is stated, the advanced oxidation unit is connected with the advanced treatment unit
And positioned at the upstream of the advanced treatment unit.
An embodiment according to the present utility model, hazardous waste materializing strategy system according to the present utility model are also wrapped
Pretreatment unit and discharge unit are included, the pretreatment unit is connected with the discharge unit and is located under the discharge unit
Trip, for being pre-processed to the hazardous waste from discharge unit；The storage element is connected simultaneously with the pretreatment unit
Positioned at the downstream of the pretreatment unit, for will the hazardous waste raw material classified storage from the pretreatment unit.
Discharge unit, for hazardous waste to be drawn off from the container containings such as groove tank car or ton bucket.Various types are suitble to object
The liquid hazardous waste of change method processing is contained by the containers such as groove tank car or ton bucket, is transported to materialization workshop and is unloaded platform, through unloading
Material unit is unloaded.An embodiment according to the present utility model, discharge unit includes device for discharging and discharging pumps.Wherein
Device for discharging can be oil filling riser or Quick joinker for pipeline, preferably oil filling riser, and discharging pump can be diaphragm pump or corrosion-resistant chemical pump etc., excellent
Select diaphragm pump.
Pretreatment unit is connected with the discharge unit, for tentatively removing in liquid hazardous waste insoluble big
Grain suspended matter.Big grain size suspended matter may be contained in liquid dangerous waste, when suspended matter is less, by setting filter on pipeline
(preferably fast open form basket filter), removes big grain size suspended matter, when suspended matter is more, by setting special precipitation tank,
Remove big grain size suspended matter.The preprocessed unit of waste liquid is filtered out after big grain size suspended matter into storing in storage element.
Storage element is connected with the pretreatment unit.Before receiving hazardous waste, analysis is sampled to it.With reference to
The Sort Code of dangerous waste, determines Testing index, and predominantly detecting index has：PH, heavy metal ion, oil content, COD etc., according to
Analysis result determines the type of hazardous waste.According to the principle that hazardous waste of different nature separately stores, multiple storages can be set
Deposit container.An embodiment according to the present utility model, the storage container is selected from spent acid storage container, salkali waste storage is held
Device, metal waste liquid storage container, coating dyestuff storage container, emulsion storage container, mineral oil storage container and other dangerous wastes
Storage container.Storage container according to the present utility model for example can be the storage tank of belt stirrer.The type of waste tank, volume
It is determined as needed with quantity.It sets agitating device that can be sunk to the bottom to avoid tiny particles content in each storage tank, while makes waste liquid
Matter is homogeneous.Heating coil can be set in waste tank, and when preventing that temperature is relatively low, waste liquid solidifies.
An embodiment according to the present utility model, the spent acid storage container are connected simultaneously with the combined reaction unit
Positioned at the upstream of the combined reaction unit, the salkali waste storage container is connected with the combined reaction unit and is located at described comprehensive
Close the upstream of reaction member.
An embodiment according to the present utility model, the metal waste liquid storage container and the combined reaction unit phase
Connect and be located at the upstream of the combined reaction unit, the metal waste liquid storage container is connected with the flocculation sediment unit and position
In the upstream of the flocculation sediment unit.
An embodiment according to the present utility model, the coating dyestuff storage container and the flocculation sediment unit phase
Connect and be located at the upstream of the flocculation sediment unit.
An embodiment according to the present utility model, the emulsion storage container is connected with the demulsification unit and position
In the upstream of the demulsification unit, the mineral oil storage container is connected with the demulsification unit and is located at the unit that is demulsified
Upstream.
Combined reaction unit, for carrying out acid-base neutralization reaction, reduction reaction etc., it is therefore an objective to the pH of liquid hazardous waste
It is adjusted, hexavalent chromium is subjected to reduction and detoxication.When spent acid is handled in combined reaction unit, preferentially carried out using salkali waste
Neutralization reaction, adjustment pH to neutrality；It is preferential that spent acid is selected to carry out neutralization reaction, adjustment pH to neutrality when handling salkali waste；Work as processing
During Cr VI, ferrous ion is used first by hexavalent chrome reduction for trivalent chromium, to reduce toxicity.
Flocculation sediment unit, for removing the suspended matter in waste liquid.By adding in inorganic flocculating agent or organic flocculant, with
The effects that absorption occurs for the suspended matter in waste liquid, net is caught, forms bulky grain flco, precipitates.Flocculant can be iron chloride, gather
Aluminum sulfate, bodied ferric sulfate (PFS), aluminium polychloride (PAC), polyaluminum ferric chloride (PAFC), polyacrylamide etc. are closed, preferably
Polyacrylamide, according to the specific nature of waste liquid, the polyacrylamide of selection appropriate ions degree and molecular weight.
Be demulsified unit, and process object is mainly emulsion/emulsion, using physics and chemical means, destroys its stability,
Realize grease layering.For emulsifying the high COD waste liquids of oils, hot demulsification is first carried out to it using steam, then aids in other hands that are demulsified
Section；Emulsion and hydrocarbon aqueous mixtures for low COD etc. sequentially add electrodeless flocculant (such as selected from calcium chloride, hypochlorous acid
Calcium, preferably calcium chloride) and organic flocculant (such as PAC) progress chemical demulsification.Heat demulsification and chemical agent demulsification can be independent
It uses, can also be applied in combination.When effect is not achieved in single demulsification, multiple demulsification can be used.
Air flotation cell is connected with the demulsification unit, for removing partial organic substances or tiny particles content.It is set by air supporting
It is standby to accelerate water-oil separating.Preferentially using air-dissolving air-float mode, compressed air is blasted by air dissolved pump, air is from useless in air flotation tank
It is released in liquid, fine oil droplets or particulate matter is taken out of, be suspended in waste liquid surface, form foam.The air flotation cell is set
There is oil-scraping device.
Filter-press dehydration unit is connected with the flocculation sediment unit, for the separation of solid-liquid.Filtering equipment can be van-type pressure
Filter or diaphragm filter press, preferably diaphragm filter press.Press filteration system front end sets quenched tank, and tune can be added in the body refuse of hardly possible dehydration
Reason agent is nursed one's health, and improves dewatering.Conditioner can be calcium oxide and flyash.
Advanced oxidation unit, main purpose are the COD removed in waste liquid, improve waste liquid biodegradability or remove waste liquid
Colourity.Fenton reagent, persulfide, sodium hypochlorite etc., preferably Fenton reagent can be used in oxidant.As COD higher, can incite somebody to action
Hydrogen peroxide adds in batches, improves the oxidation efficiency of hydrogen peroxide.
Salt content is higher after liquid waste processing is complete, when can not enter subsequent biochemical processing unit by diluted mode,
It is contemplated that using evaporation element.Evaporation element for the concentration of brine waste or the waste water containing hardly degraded organic substance, reduces useless
Salt content and difficult volatile organic matter in liquid, make waste liquid be easy to biochemical treatment.The generated residual conduct of high-salt concentrated contracting kettle
Dangerous waste carries out landfill disposal.The evaporated form that evaporation element uses can be multiple-effect evaporation or mechanical compression re-evaporation, preferably more
Effect evaporation.
When handling waste liquid containing heavy metal, after the processing such as front reaction, precipitation, what residual was a small amount of in waste water belongs to one
The heavy metal ion of pollutant is possible to still not up to standard.Advanced treatment unit, for removing the heavy metal of low content in waste liquid
Ion and thin suspended particle.Can be used filtering (such as sand filtration, activated carbon filtering), absorption (such as heavy metals trapping device) and
The modes such as ion exchange.
Biochemical treatment unit for removing the pollutants such as the COD in waste liquid, ammonia nitrogen and phosphate, expires processed waste water
Foot discharge or reuse requirement.Front end sets two regulating reservoirs, convenient for stabilizing water quality.Using " hydrolysis acidification+A2O " techniques, pass through
Hydrolysis acidification further improves the biodegradability of waste liquid, is convenient for follow-up denitrogenation, dephosphorization, the processing for dropping COD.
An embodiment according to the present utility model, hazardous waste materializing strategy system according to the present utility model are also wrapped
It includes
For the configuration of reagent needed for each unit and the reagent that adds it is molten with add unit and
For the supply unit of the transhipment of hazardous waste between each unit.The supply unit is by utility conduit system, control
Valve and pumping system processed composition, can realize flexible transhipment of the waste liquid between each unit, by defeated between each unit
Unit is sent to form netted connection, it is ensured that the flexible combination of process for treating waste liquor and switching.
An embodiment according to the present utility model, combined reaction unit, demulsification unit and advanced oxidation unit are all provided with
Online pH, oxidation-reduction potential, temperature-indicating instrument are put, to control extent of reaction.
The utility model has the advantages that：
(1) the hazardous waste materializing strategy system of the utility model, the characteristics of fully taking into account hazardous waste, for danger
The characteristics of waste component is complicated, and fluctuation is big sets multiple modular processing units, by supply unit by each formant
Networking connection is carried out, the flexible and changeable for the treatment of process is realized, improves the adaptability of process system and the place of each operating unit
Reason ability reduces processing cost, realizes materializing strategy qualified discharge or reuse.
(2) the utility model carries out spent acid, salkali waste, metal waste liquid, waste mineral oil, waste emulsified mixture, coating dyestuff waste
Classification centralized processing analyzes the situation that every a kind of hazardous waste is likely to occur, has formulated corresponding treatment process.
(3) the hazardous waste materializing strategy system of the utility model, adds advanced treatment unit and evaporation element, effectively
Ground solves the problems, such as that materializing strategy water outlet heavy metal and salt content are high, and the stable operation for biochemical processing unit provides favorably
Condition.
(4) the hazardous waste materializing strategy system of the utility model, before each processing batch, all in storage element
Hazardous waste is sampled experiment, determines process route and process conditions, ensures that the stabilization of system is effectively run, and to handling out
Water is detected, unqualified then reflow treatment, improves the safety and stability of system operation.
(5) the system capacity of resisting impact load of the utility model is strong, when larger fluctuation occurs for hazardous waste property, passes through
Technique unit adjusts, and can ensure that water outlet reaches emission request；When handling a variety of liquid dangerous waste wastes, shared by function,
The technique unit for same function of avoiding overlapping construction, reduces investment；Pass through the combination of optimize technique unit, it is possible to reduce need not
The processing links wanted reduce material, energy consumption, so as to reduce hazardous waste processing cost.
Description of the drawings
Fig. 1 is the schematic diagram according to the hazardous waste materializing strategy system of the utility model.
Specific embodiment
Specific embodiment is only the explanation to the utility model, without forming the limitation to the utility model content, under
Face will be further described and describe to the utility model with reference to specific embodiment.
As shown in Figure 1, hazardous waste materializing strategy system according to the present utility model includes
For by the storage element of hazardous waste raw material classified storage, for carry out acid-base neutralization reaction, reduction reaction and
The combined reaction unit of chemical precipitation, flocculation sediment unit, be demulsified unit, air flotation cell and filter-press dehydration unit；
The storage element includes more than one storage container, the storage container and combined reaction unit, flocculation sediment
At least one unit in unit, demulsification unit is connected, for providing hazardous waste raw material at least one unit；And institute
State the downstream that combined reaction unit, flocculation sediment unit, demulsification unit are respectively positioned on the storage element；
The storage container is selected from spent acid storage container, salkali waste storage container, metal waste liquid storage container, the storage of coating dyestuff
Deposit container, emulsion storage container, mineral oil storage container and other dangerous waste storage containers；
The combined reaction unit is connected with the flocculation sediment unit and is located at the upstream of the flocculation sediment unit, institute
It states demulsification unit with the flocculation sediment unit to be connected and be located at the upstream of the flocculation sediment unit, unit and the gas of being demulsified
Floating unit is connected and is located at the upstream of the air flotation cell, and entrance phase of the outlet of the air flotation cell also with the unit that is demulsified
Even, the flocculation sediment unit is connected with the filter-press dehydration unit and is located at the upstream of the filter-press dehydration unit.
Hazardous waste materializing strategy system according to the present utility model further includes advanced oxidation unit, for removing in waste liquid
The advanced treatment unit of heavy metal ion and suspended particulate, evaporation element and biochemical treatment unit；
The filter-press dehydration unit is connected with the evaporation element and is located at the upstream of the evaporation element, and the press filtration takes off
Water unit is connected with the advanced treatment unit and is located at the upstream of the advanced treatment unit, the filter-press dehydration unit and institute
State the upstream that advanced oxidation unit is connected and is located at the advanced oxidation unit, the filter-press dehydration unit and the biochemical treatment
Unit is connected and is located at the upstream of the biochemical treatment unit；
The evaporation element is connected with the advanced treatment unit and is located at the upstream of the advanced treatment unit, the steaming
The first upstream being connected with the biochemical treatment unit and be located at the biochemical treatment unit of bill；
The advanced treatment unit is connected with the biochemical treatment unit and is located at the upstream of the biochemical treatment unit；
The advanced oxidation unit is connected with the evaporation element and is located at the upstream of the evaporation element, the advanced oxygen
Change unit with the biochemical treatment unit to be connected and be located at the upstream of the biochemical treatment unit, the advanced oxidation unit and institute
The downstream that air flotation cell is connected and is located at the air flotation cell is stated, the advanced oxidation unit is connected with the advanced treatment unit
And positioned at the upstream of the advanced treatment unit.
Hazardous waste materializing strategy system according to the present utility model further includes pretreatment unit and discharge unit, described pre-
Processing unit is connected with the discharge unit and is located at the downstream of the discharge unit, for giving up to the danger from discharge unit
Object is pre-processed；The storage element is connected with the pretreatment unit and is located at the downstream of the pretreatment unit, is used for
By the hazardous waste raw material classified storage from the pretreatment unit.
Hazardous waste materializing strategy system according to the present utility model further includes
For the configuration of reagent needed for each unit and the reagent that adds it is molten with add unit and
For the supply unit of the transhipment of hazardous waste between each unit.
The spent acid storage container is connected with the combined reaction unit and is located at the upstream of the combined reaction unit, institute
State the upstream that salkali waste storage container is connected with the combined reaction unit and is located at the combined reaction unit.
The metal waste liquid storage container is connected with the combined reaction unit and is located at the upper of the combined reaction unit
Trip, the metal waste liquid storage container are connected with the flocculation sediment unit and are located at the upstream of the flocculation sediment unit.
The coating dyestuff storage container is connected with the flocculation sediment unit and is located at the upper of the flocculation sediment unit
Trip.
The emulsion storage container with it is described demulsification unit be connected and be located at it is described be demulsified unit upstream, the mineral
Oily storage container with it is described demulsification unit be connected and be located at it is described be demulsified unit upstream.
Another aspect according to the present utility model is provided and a kind of endangered using according to system described in the utility model
The method of dangerous waste materializing strategy, comprises the following steps：
(1) when handling acid pickle or spent lye, acid-base neutralization reaction is first carried out in combined reaction unit, until pH value
For neutrality；Flocculation precipitation reaction is carried out subsequently into flocculation sediment unit, water outlet realizes separation of solid and liquid by filter-press dehydration unit；
Specifically, when handling acid pickle, salkali waste can be used to carry out acid-base neutralization reaction, so as to reach the treatment of wastes with processes of wastes against one another
Effect.It can be supplied during salkali waste deficiency with high-quality alkali (referring to alkali of the commercially available, concentration at least more than 90%).Similarly, when
When handling spent lye, spent acid can be used to carry out acid-base neutralization reaction, so as to achieve the effect that the treatment of wastes with processes of wastes against one another.It can during spent acid deficiency
To be supplied with high-quality sour (referring to acid of the commercially available, concentration at least more than 90%).Solution for can add after neutral flocculant or
Person's chemical agent carries out chemical precipitation reaction, and water outlet enters filter-press dehydration unit and carries out separation of solid and liquid, sludge burning or safety
Landfill.
(2) when handling heavy metal waste liquid, precipitated in flocculation sediment unit, water outlet is real by filter-press dehydration unit
Existing separation of solid and liquid；
Specifically, alkali (can also be sulfide, be preferably alkali) and flocculant counterweight are added in flocculation sediment unit
Metal ion is precipitated, and according to different heavy metal ion, selects optimal precipitation pH.Water outlet enter filter-press dehydration unit into
Row separation of solid and liquid, body refuse carry out security landfill.
(3) when handling coating dyestuff waste, precipitated in flocculation sediment unit, with turbidity removal of decolourizing, water outlet passes through
Filter-press dehydration unit realizes separation of solid and liquid, sludge burning or security landfill；
(4) when handling waste mineral oil or during waste emulsified mixture, it is demulsified first be demulsified in unit, if during being demulsified
It is more (in the utility model, " it is more to generate oil " refers to have oil reservoir to be formed on liquid level) to generate oil, then into air flotation cell
Carry out water-oil separating；After water-oil separating, air flotation cell effluent quality is judged, it is single that demulsification is again introduced into if being still emulsifying
Member carries out secondary demulsification, carries out flocculation sediment subsequently into flocculation sediment unit, enters back into filter-press dehydration unit progress solid-liquid point
From；Advanced oxidation unit is directly entered if being not emulsifying by air flotation cell to be aoxidized；If oil is generated during demulsification
It is point less, then flocculation sediment is carried out into flocculation sediment unit, carry out separation of solid and liquid subsequently into filter-press dehydration unit, body refuse is burnt
Burning or security landfill.
An embodiment according to the present utility model, the filtrate that waste liquid is generated through filter-press dehydration unit are biochemical entering
Before processing unit, analysis is sampled to water quality.Can be into the Con trolling index of biochemical treatment unit：COD is 2000mg/
L, heavy metal 10mg/L, salt content 20000mg/L.
An embodiment according to the present utility model, in above-mentioned steps (1) or step (2) or step (3) or step (4)
It is before further comprising the steps of：
(i) before receiving hazardous waste, for dangerous waste sample, hazardous waste type, first sample examination analysis ingredient are specified
Composition, and lab scale processing experiment is done, after the technological process, technological parameter and the treatment effect that confirm processing, form preliminary disposal
Scheme can be received.
(ii) waste liquid is transported to materialization workshop by special hazardous waste transport vehicle and unloads platform, (such as unloads through discharge unit
Oil filling riser or pipe line fast joint) connection end-dump car, it is laggard that pretreatment unit removal bulky grain suspended matter is delivered to by corresponding unloading pump
Enter corresponding storage container.
(iii) each experiment is sampled to the hazardous waste for intending processing in storage container, determines technique before processing batch
Route and process conditions.
An embodiment according to the present utility model, when handling heavy metal waste liquid, if containing six in heavy metal waste liquid
Valency chromium then before being precipitated into flocculation sediment unit, is additionally included in combined reaction unit and carries out reduction reaction
Step.
An embodiment according to the present utility model, processing acid pickle, spent lye, coating dyestuff waste, waste mineral oil
Or during waste emulsified mixture, after corresponding processing (separation of solid and liquid or oxidation) is completed, the COD and salt content of filtrate are measured；If COD
Exceeded, then filtrate enters advanced oxidation unit by filter-press dehydration unit and is aoxidized；If salt content is exceeded, filtrate is taken off by press filtration
Water unit enters evaporation element and is evaporated desalination；If COD and salt content are exceeded, filtrate is introduced by filter-press dehydration unit
Advanced oxidation unit is aoxidized, and is then entered back into evaporation element and is evaporated desalination；If COD and salt content are qualified, filter
Liquid directly discharges or into biochemical treatment unit discharge after biochemical treatment is up to standard.
An embodiment according to the present utility model when handling heavy metal waste liquid, after separation of solid and liquid is completed, measures filter
COD, salt content and the content of beary metal of liquid；If COD is exceeded, filtrate enters advanced oxidation unit by filter-press dehydration unit and carries out
Oxidation；If salt content is exceeded, filtrate enters evaporation element by filter-press dehydration unit and is evaporated desalination；If content of beary metal surpasses
It marks, then filtrate enters advanced treatment unit by filter-press dehydration unit and carries out；If COD and salt content are exceeded, filtrate is by press filtration
Dewatering unit is introduced into advanced oxidation unit and is aoxidized, and then enters back into evaporation element and is evaporated desalination；If COD and a huge sum of money
Category content is exceeded, then filtrate is introduced into advanced oxidation unit by filter-press dehydration unit and is aoxidized, and then enters back into depth
Manage unit；If salt content and content of beary metal are exceeded, filtrate is introduced into evaporation element by filter-press dehydration unit and is evaporated
Then desalination judges whether according to condensate liquid water quality situation into advanced treatment unit；If COD, content of beary metal and salt content
It is exceeded, then it is introduced into advanced oxidation unit and is aoxidized, enter back into evaporation element and be evaporated desalination, finally enter depth
Manage unit；If COD, content of beary metal and salt content are qualified, filtrate is directly discharged or is carried out into biochemical treatment unit
Discharge after biochemical treatment is up to standard.
COD qualifications described in the utility model, content of beary metal are qualified, salt content qualification each means satisfaction《Sewage is comprehensive
Close discharge standard》(GB8978-1996) three-level discharge standard.
An embodiment according to the present utility model when the water outlet COD of advanced oxidation unit is more than 2000mg/L, is returned
It returns the advanced oxidation unit and carries out secondary oxidation.
The hazardous waste materilization freatment method of the utility model is illustrated with reference to specific embodiment.
Embodiment 1
Organic spent lye is derived from stone refinery petrol and diesel oil sulfur removal technology, and water quality detection achievement data is as shown in table 1.
1 organic spent lye water quality detection achievement data of table
Since organic spent lye pH value is higher, pH value adjusting is carried out to organic spent lye using spent acid first, works as organic waste
When lye pH is down to neutrality, discovery has substantial amounts of flco, therefore flocculation sediment is used to handle, and flocculant uses aluminium polychloride
(PAC) and anionic polyacrylamide (APAM).Water outlet after flocculation sediment enters filter-press dehydration unit and carries out separation of solid and liquid.By
In the COD higher of filtrate, continue to adjust pH value to acidity with spent acid, carry out Fenton oxidation processing.Organic spent lye relatively per ton,
PAC dosages are 2kg, and APAM dosages are 0.01kg, and ferrous sulfate dosage is 16.68kg, mass fraction be 30% it is double
Oxygen moisture adds three times, and per adding every other hour once, dosage three times is followed successively by 100L, 60L and 40L, when reaction 3 is small
Afterwards, add calcium oxide and APAM carries out separation of solid and liquid, organic spent lye relatively per ton, calcium oxide dosage is 14kg, and APAM is thrown
Dosage is 0.01kg.Water outlet enters biochemical treatment, bio-chemical effluent COD<300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, sulfide
It does not detect, total salt<5000mg/L, water outlet meet《Integrated wastewater discharge standard》(GB8978-1996) three-level discharge standard.
Embodiment 2
Organic spent lye is derived from MTO projects workshop, which is mainly characterized by pH value height, and COD value is high, and salt content is big,
It is as shown in table 2 to predominantly detect achievement data for smell weight, bronzing.
2 organic spent lye Testing index data of table
Using the treatment of wastes with processes of wastes against one another, pH value of solution is adjusted to neutrality using spent acid, adds bodied ferric sulfate (PFS), cation poly- third
Acrylamide (CPAM) carries out flocculation sediment, reduces solution colourity, turbidity and organic matter.Water outlet after flocculation sediment enters press filtration and takes off
Water unit carries out separation of solid and liquid.Since the COD and salt content of filtrate are higher, continue to adjust pH value to acidity with spent acid, add sweet smell
The reagent that pauses carries out deep oxidation, and the hard-degraded substances such as degradation COD, sulfide remove after Fenton oxidation into evaporation element twice
Remove the salinity in solution.Organic spent lye relatively per ton, PFS dosages are 2.5kg, and CPAM dosages are 0.02kg, and sulfuric acid is sub-
Iron dosage is 16.68kg, and the hydrogen peroxide dosage that mass fraction is 30% is 200L, and calcium oxide dosage is 14kg.Evaporation
Water outlet COD<300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, total salt<200mg/L, water outlet meet《Integrated wastewater discharge standard》
(GB8978-1996) three-level discharge standard.Evaporate security landfill after produced mixed salt desiccation.
Embodiment 3
Useless paint water is mainly characterized by that colourity, turbidity are big, and suspended matter is more, smell weight, irritant smell, COD high.It is derived from
Three kinds of coating dyestuff hazardous wastes mixing centralized processing in Langfang, table 3 is that the water quality detection of three kinds of coating dyestuff hazardous wastes refers to
Mark data.
3 three kinds of coating dyestuff hazardous waste water quality detection achievement datas of table
It is focused on using classification, after three kinds of Langfang coating dyestuff hazardous waste is mixed, a batch processed, after mixing
Flocculant is added first carries out decoloration turbidity removal.Water outlet after flocculation sediment enters filter-press dehydration unit and carries out separation of solid and liquid.Due to
The COD higher of filtrate continues to adjust pH value to acidity with spent acid, adds the toxic, hard-degraded substance of Fenton reagent degradation afterwards, most
Enter biochemical treatment afterwards.Waste liquid relatively per ton, flocculant poly aluminium chloride (PAC) dosage be 2kg, flocculant anion poly- third
Acrylamide (APAM) dosage is 0.03kg, and ferrous sulfate dosage is 8.34kg, and the hydrogen peroxide that mass fraction is 30% adds
It measures as 50L, calcium oxide dosage is 5.33kg.Bio-chemical effluent COD<300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, sulfide
It does not detect, total salt<5000mg/L, water outlet meet《Integrated wastewater discharge standard》(GB8978-19 96) three-level discharge standard.
Embodiment 4
Waste emulsified mixture is mainly characterized by that emulsifying, turbidity are big, and suspended matter is more, COD high, is derived from three kinds of Langfang waste emulsified mixture
Mixing centralized processing, table 4 is the water quality detection achievement data of three kinds of waste emulsified mixtures.
4 three kinds of waste emulsified mixture water quality detection achievement datas of table
It is focused on using classification, after three kinds of Langfang waste emulsified mixture is mixed, a batch processed adds first after mixing
Calcium salt is demulsified.Water outlet after demulsification, which enters flocculation sediment unit and carries out flocculation sediment, to be entered back into filter-press dehydration unit and is consolidated
Liquid separates.Due to the COD higher of filtrate, continue to adjust pH value to acidity with spent acid, it is toxic, difficult to add Fenton reagent degradation afterwards
Degradation material finally enters biochemical treatment.Waste liquid relatively per ton, calcium chloride dosage be 5kg, flocculant poly aluminium chloride ferrum
(PAFC) dosage is 4kg, and flocculant anionic polyacrylamide (APAM) dosage is 0.03kg, and ferrous sulfate dosage is
11.12kg, the hydrogen peroxide dosage that mass fraction is 30% are 100L, and calcium oxide dosage is 6.33kg.Bio-chemical effluent COD<
300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, and sulfide does not detect, total salt<5000mg/L, water outlet meet《Integrated wastewater is arranged
Put standard》(GB8978-1996) three-level discharge standard.
Embodiment 5
The big waste emulsified mixture of oil content is than great, and containing oil, COD high, intractability is big, and table 5 is the useless emulsification in Shijiazhuang
The water quality detection achievement data of liquid.
5 Shijiazhuang waste emulsified mixture water quality detection achievement data of table
Add strong acid demulsification first, then be aerated air supporting to make water-oil separating in solution, add afterwards calcium salt carry out it is secondary broken
Breast.Water outlet after demulsification enters flocculation sediment unit progress flocculation sediment and enters back into filter-press dehydration unit progress separation of solid and liquid.By
In the COD higher of filtrate, continue to adjust pH value to acidity with spent acid, add Fenton reagent afterwards and degrade toxic, hard-degraded substance,
Finally enter biochemical treatment.Waste liquid relatively per ton, concentrated sulfuric acid dosage are 7.81L, and calcium chloride dosage is 5kg, and flocculant gathers
Conjunction aluminium chloride ferrum (PAFC) dosage be 7.5kg, flocculant anionic polyacrylamide (APAM) dosage be 0.03kg, sulfuric acid
Ferrous dosage is 33.36kg, and the hydrogen peroxide dosage that mass fraction is 30% is 300L, and calcium oxide dosage is 17kg.It is raw
Dissolve water COD<300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, and sulfide does not detect, total salt<5000mg/L, water outlet meet
《Integrated wastewater discharge standard》(GB8978-1996) three-level discharge standard.
Embodiment 6
Containing chromium, copper, zinc, table 6 is the water quality detection achievement data of Shijiazhuang surface treatment liquid for Shijiazhuang surface treatment.
The water quality detection achievement data of 6 Shijiazhuang surface treatment liquid of table
Surface treatment liquid is mainly acid waste liquid, and containing substantial amounts of heavy metal, salinity is high.First, throw in acid condition
Add reducing agent sodium hydrogensulfite by hexavalent chrome reduction into trivalent chromium.Sodium hydroxide is added afterwards adjusts surface treatment liquid pH to alkali
Property, metal ion is made to generate the hydroxide for being insoluble in water in alkaline conditions, flocculating agent A PAM is added and accelerates separation of solid and liquid.Go out
Water enters filter-press dehydration unit and carries out separation of solid and liquid.Since the salt content of filtrate is higher, into evaporation element desalination.It is relatively per ton
Waste liquid, sodium hydrogensulfite dosage are 2.09kg, and sodium hydroxide dosage is 42kg, and APAM dosages are 0.02kg.It evaporates
Water COD<300mg/L, ammonia nitrogen<30mg/L, pH are 6~9, total salt<200mg/L, heavy metal do not detect, and water outlet meets《Sewage is comprehensive
Close discharge standard》(GB8978-1996) three-level discharge standard evaporates security landfill after produced mixed salt desiccation.At surface
Manage that liquid annual output is few, can with enter back into biochemical treatment list after the solution mixed diluting after other dangerous waste materializing strategies
Member, last qualified discharge.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
New spirit and scope.If in this way, these modifications and variations of the utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these modification and variations.
Claims (9)
1. a kind of hazardous waste materializing strategy system, which is characterized in that including
For by the storage element of hazardous waste raw material classified storage, for carrying out acid-base neutralization reaction, reduction reaction and chemistry
The combined reaction unit of precipitation, flocculation sediment unit, be demulsified unit, air flotation cell and filter-press dehydration unit；
The storage element includes more than one storage container, the storage container and combined reaction unit, flocculation sediment unit,
At least one unit in demulsification unit is connected, for providing hazardous waste raw material at least one unit；It is and described comprehensive
Close the downstream that reaction member, flocculation sediment unit, demulsification unit are respectively positioned on the storage element；
The combined reaction unit is connected with the flocculation sediment unit and is located at the upstream of the flocculation sediment unit, described broken
Newborn unit is connected with the flocculation sediment unit and is located at the upstream of the flocculation sediment unit, the demulsification unit and air supporting list
Member is connected and positioned at the upstream of the air flotation cell, and entrance of the outlet of the air flotation cell also with the unit that is demulsified is connected,
The flocculation sediment unit is connected with the filter-press dehydration unit and is located at the upstream of the filter-press dehydration unit.
2. materializing strategy system according to claim 1, which is characterized in that further include advanced oxidation unit, for removing
The advanced treatment unit of heavy metal in waste liquid ion and suspended particulate, evaporation element and biochemical treatment unit；
The filter-press dehydration unit is connected with the evaporation element and is located at the upstream of the evaporation element, the filter-press dehydration list
First upstream being connected with the advanced treatment unit and be located at the advanced treatment unit, the filter-press dehydration unit and the height
Grade oxidation unit is connected and is located at the upstream of the advanced oxidation unit, the filter-press dehydration unit and the biochemical treatment unit
It is connected and is located at the upstream of the biochemical treatment unit；
The evaporation element is connected with the advanced treatment unit and is located at the upstream of the advanced treatment unit, and the evaporation is single
First upstream being connected with the biochemical treatment unit and be located at the biochemical treatment unit；
The advanced treatment unit is connected with the biochemical treatment unit and is located at the upstream of the biochemical treatment unit；
The advanced oxidation unit is connected with the evaporation element and is located at the upstream of the evaporation element, the advanced oxidation list
First upstream being connected with the biochemical treatment unit and be located at the biochemical treatment unit, the advanced oxidation unit and the gas
Floating unit is connected and is located at the downstream of the air flotation cell, and the advanced oxidation unit is connected with the advanced treatment unit and position
In the upstream of the advanced treatment unit.
3. materializing strategy system according to claim 1, which is characterized in that pretreatment unit and discharge unit are further included,
The pretreatment unit is connected with the discharge unit and is located at the downstream of the discharge unit, for from discharge unit
Hazardous waste is pre-processed；The storage element is connected with the pretreatment unit and is located under the pretreatment unit
Trip, for will the hazardous waste raw material classified storage from the pretreatment unit.
4. materializing strategy system according to claim 1, which is characterized in that the storage container is selected from spent acid storage and holds
Device, salkali waste storage container, metal waste liquid storage container, coating dyestuff storage container, emulsion storage container, mineral oil storage are held
Device and other dangerous waste storage containers.
5. materializing strategy system according to claim 1, which is characterized in that further include
For the configuration of reagent needed for each unit and the reagent that adds it is molten with add unit and
For the supply unit of the transhipment of hazardous waste between each unit.
6. materializing strategy system according to claim 4, which is characterized in that the spent acid storage container and the synthesis are anti-
Unit is answered to be connected and is located at the upstream of the combined reaction unit, the salkali waste storage container is connected with the combined reaction unit
And positioned at the upstream of the combined reaction unit.
7. materializing strategy system according to claim 4, which is characterized in that the metal waste liquid storage container with it is described comprehensive
It closes reaction member to be connected and be located at the upstream of the combined reaction unit, the metal waste liquid storage container and the flocculation sediment
Unit is connected and is located at the upstream of the flocculation sediment unit.
8. materializing strategy system according to claim 4, which is characterized in that the coating dyestuff storage container and the wadding
Solidifying precipitation unit is connected and is located at the upstream of the flocculation sediment unit.
9. materializing strategy system according to claim 4, which is characterized in that the emulsion storage container and the demulsification
Unit is connected and is located at the upstream of the demulsification unit, and the mineral oil storage container is connected with the unit that is demulsified and is located at institute
State the upstream of demulsification unit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110237582A (en) * | 2019-05-10 | 2019-09-17 | 杭州凯盛环保工程有限公司 | A kind of danger waste liquid materialization total system |
| CN110237582B (en) * | 2019-05-10 | 2021-08-17 | 杭州凯盛环保工程有限公司 | Dangerous waste liquid materialization comprehensive treatment system |
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