CN102786167A

CN102786167A - Laboratory wastewater treating device

Info

Publication number: CN102786167A
Application number: CN2012102588127A
Authority: CN
Inventors: 王如芹
Original assignee: Linyi University
Current assignee: Linyi University
Priority date: 2012-07-17
Filing date: 2012-07-17
Publication date: 2012-11-21
Anticipated expiration: 2032-07-17
Also published as: CN102786167B

Abstract

The invention discloses a laboratory wastewater treating device which comprises a temporary storage box, a neutralizing and settling box and an acid-proof pump. The temporary storage box is provided with a collecting funnel; a pH meter, a dosing box and a main shaft are installed on the neutralizing and settling box, the main shaft is provided with a stirring paddle and an electric heating core, a clear liquid discharging pipe is arranged on the side wall of the neutralizing and settling box, an exhaust pipe is arranged on the upper end of the neutralizing and settling box, and a settling tank is arranged at the bottom of the neutralizing and settling box; the bottom of the settling tank is provided with a discharge auger, a discharge auger discharging port is connected with a centrifugal separator, and the centrifugal separator is provided with a material discharging outlet and a liquid discharging pipe. The laboratory wastewater treating device adopts an integration design, has the advantages of a compact and simple structure, low acquisition cost, easy operation, a few process steps and strong practicability, and overcomes the problem of great application difficulty in conventional treatment of laboratory wastewater.

Description

The Laboratory Waste Water Treatment device

Technical field

The present invention relates to the chemical wastewater processing technology field, be specially a kind of Laboratory Waste Water Treatment device.

Background technology

Along with the development of constantly bringing forth new ideas of science and technology, the laboratory that is used for chemical technology research and development test is more and more, along with and the chemical wastewater that produces also becomes very important problem.

The chemical laboratory waste discharge is divided into two types, and one type is the dangerous waste liquid with high density, and this type waste liquid has higher hazardness, generally is single collection, transfers the unit with processing qualification then and handles; And another kind of be that usual test produces; Reach the comprehensive waste liquid of acid, alkali, heavy metal, organism that cleaning experiment equipment, glassware etc. are produced; The output of this type waste liquid is big, complicated component, and hazardness is ignored by people easily; Have much testing crew and directly will test waste liquid and pour in the water drain, finally rivers and lakes and groundwater resource are worked the mischief.

Along with raising to environmental quality requirement; Environmental protection department could discharge after requiring the laboratory that wastewater treatment is reached emission standard; But, be difficult to play comparatively ideal treatment effect because experiment waste water complicated component adopts the Traditional industrial waste water treatment process; And on the other hand, for some middle-size and small-size experimental units, because waste water output is less, and generation time is indefinite, adopts existing treatment process also to have certain enforcement difficulty.

Summary of the invention

The object of the present invention is to provide a kind of easy enforcement, compact construction is fit to medium and small experimental unit and uses, and treatment effect Laboratory Waste Water Treatment device preferably.

For reaching above-mentioned technical purpose; The present invention adopts following technical scheme to realize: a kind of Laboratory Waste Water Treatment device comprises: be used for temporary waste liquid holding tank, the neutralization precipitation case that links to each other with holding tank, be arranged on the acid between holding tank and the neutralization precipitation case, holding tank is provided with collection funnel; It is characterized in that: described collection funnel bottom links to each other with holding tank through circuitous up and down S pipe; Be provided with filter bowl in the collection funnel, the collection funnel upper end is provided with sealing cover, and the collection funnel sidewall is connected with flushing pipeline; Flushing pipeline is used to connect running water pipe, and is provided with switch-valve; The PH meter is installed on the described neutralization precipitation case, and the PH meter is arranged on the position, middle and lower part in the neutralization precipitation case; Neutralization precipitation case top is equipped with three dispensing kits; Be provided with horizontal main shaft in the neutralization precipitation case, main shaft is provided with stirring rake, is provided with heating core in the main shaft, and bearing fixing is passed through on neutralization precipitation case sidewall in the main shaft two ends, and an end is connected with drive-motor; Neutralization precipitation case sidewall is provided with the clear liquid discharging pipe, and the upper end is provided with vapor pipe, and clear liquid discharging pipe and vapor pipe all are connected with the active carbon purifying device; Neutralization precipitation case bottom is a subsider, and the subsider cross section is del, and is small top and big bottom, and the lower end is fillet, is convenient to collecting precipitation; The subsider bottom is provided with the discharge auger, and discharge auger discharge port is connected with separating centrifuge, and separating centrifuge is provided with discharge port and liquid discharge pipe, and liquid discharge pipe connects the active carbon purifying device.

The principle of work of this device is: chemical wastewater provisional storage in holding tank that the laboratory produces; After reaching certain amount; Pump in the neutralization precipitation case through acid, the PH that shows according to the PH meter adds neutralizing agent through dispensing kit, can add fast response through stirring rake and heating lamp mode; Treat to stop to stir after PH is adjusted to 6-9, and add an amount of Fe ³⁺Make waste liquid quicken sedimentation, when treating that deposition no longer produces, the clear liquid in the neutralization precipitation case can be discharged after the active carbon purifying device filters; The throw out that produces in the neutralization precipitation case finally is deposited in the subsider, is delivered in the separating centrifuge through the discharge auger and dewaters, and collects after the final solids mummification, and isolated liquid can discharge after the active carbon purifying apparatus processes.

Advantage of the present invention: collection funnel and holding tank adopt the S pipe coupling, and stopping property is strong, and is very convenient when pouring chemical experiment waste liquid into; The neutralization precipitation case has neutralization, two kinds of functions of deposition, simplified process for treating waste liquor greatly, and it adopts full-closed structure, can avoid evaporating; It adopts integrated design, compact construction, simple, and acquisition cost is low, is fit to middle-size and small-size laboratory and purchases use; Its processing ease, process step is less, and exploitativeness is strong, has solved and has tested the big problem of wastewater treatment enforcement difficulty in the past; Waste water can reach non-pollution discharge after treatment, and waste solid can reuse or focus on.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the subsider sectional view.

Fig. 3 is collection funnel and holding tank syndeton synoptic diagram.

Among the figure, 1, holding tank, 2, collection funnel, 3, the PH meter, 4, dispensing kit, 5, heating core; 6, main shaft, 7, stirring rake, 8,12, drive-motor, 9, the discharge auger, 10,13,21, the active carbon purifying device, 11, vapor pipe; 14, liquid discharge pipe, 15, separating centrifuge, 16, discharge port, 17, the neutralization precipitation case, 18, subsider, 19, acid; 20, clear liquid discharging pipe, 22, filter bowl, 23, sealing cover, 24, switch-valve, 25, flushing pipeline, 26, the S pipe.

Embodiment

Referring to accompanying drawing 1, shown in 2, the pipeline between holding tank 1 and the neutralization precipitation case 17 is provided with acid 19; Holding tank 1 is provided with collection funnel 2, is used to collect laboratory waste water and temporarily stores; PH meter 3 is installed, the position, middle and lower part that PH meter 3 is arranged in the neutralization precipitation case 17, but the PH of collection liquid on the described neutralization precipitation case 17; Neutralization precipitation case 17 tops are equipped with three dispensing kits 4, hold acid, alkali neutralizing agent and precipitation agent respectively; Be provided with horizontal main shaft 6 in the neutralization precipitation case 17; Main shaft 6 is provided with stirring rake 7; Be provided with heating core 5 in the main shaft 6, bearing fixing is passed through on neutralization precipitation case 17 sidewalls in main shaft 6 two ends, and an end is connected with drive-motor 8; In when the waste liquid, can accelerate reaction efficiency through stirring rake 7 and heating core 5; Neutralization precipitation case 17 sidewalls are provided with clear liquid discharging pipe 20; The upper end is provided with vapor pipe 11; Clear liquid discharging pipe 20 and vapor pipe 11 are connected with active carbon purifying device 21,10 respectively, and the clear liquid that gas that neutralization precipitation case 17 produces and post precipitation produce can discharge after active carbon purifying is handled; Neutralization precipitation case 17 bottoms are subsider 18, and subsider 18 cross sections are del, and are small top and big bottom, and the lower end is fillet, are convenient to collecting precipitation; Subsider 18 bottoms are provided with discharge auger 9, and the discharge port of discharge auger 9 is connected with separating centrifuge 15, and separating centrifuge 15 is provided with discharge port 16 and liquid discharge pipe 14, and liquid discharge pipe 14 connects active carbon purifying device 13; Isolated solids can reuse after drying, or focuses on, and isolated liquid can discharge after through purifying treatment.

Shown in accompanying drawing 3; Described collection funnel 2 bottoms link to each other with holding tank 1 through circuitous up and down S pipe 26; Be provided with filter bowl 22 in the collection funnel 2, collection funnel 2 upper ends are provided with sealing cover 23, and collection funnel 2 sidewalls are connected with flushing pipeline 25; Flushing pipeline 25 is used to connect running water pipe, and is provided with switch-valve 24; Waste liquid is poured in the collection funnel 2; Filter bowl 22 can filter, and solids is leached, and 26 of S pipes can play airtight buffer action; Prevent that the gas in the holding tank 1 from overflowing, and flushing pipeline 25 can be used for residue waste liquid on the collection funnel 2 is flushed in the holding tank 1.

Claims

1. Laboratory Waste Water Treatment device; Comprise the holding tank, the neutralization precipitation case that links to each other with holding tank that are used for temporary waste liquid, be arranged on the acid between holding tank and the neutralization precipitation case; Holding tank is provided with collection funnel, it is characterized in that: described collection funnel bottom links to each other with holding tank through circuitous up and down S pipe, is provided with filter bowl in the collection funnel; The collection funnel upper end is provided with sealing cover; The collection funnel sidewall is connected with flushing pipeline, and flushing pipeline is used to connect running water pipe, and is provided with switch-valve; The PH meter is installed on the described neutralization precipitation case, and the PH meter is arranged on the position, middle and lower part in the neutralization precipitation case; Neutralization precipitation case top is equipped with three dispensing kits; Be provided with horizontal main shaft in the neutralization precipitation case, main shaft is provided with stirring rake, is provided with heating core in the main shaft, and bearing fixing is passed through on neutralization precipitation case sidewall in the main shaft two ends, and an end is connected with drive-motor; Neutralization precipitation case sidewall is provided with the clear liquid discharging pipe, and the upper end is provided with vapor pipe, and clear liquid discharging pipe and vapor pipe all are connected with the active carbon purifying device; Neutralization precipitation case bottom is a subsider, and the subsider cross section is del, and is small top and big bottom, and the lower end is a fillet; The subsider bottom is provided with the discharge auger, and discharge auger discharge port is connected with separating centrifuge, and separating centrifuge is provided with discharge port and liquid discharge pipe, and liquid discharge pipe connects the active carbon purifying device.