CN208407011U - Granular activated carbon regenerative system device - Google Patents

Abstract

Utility model is related to granular activated carbon regenerative system engineering device technique field, is related to a kind of granular activated carbon regenerative system device.It includes regenerating tank, dioxygen water inlet, sulfuric acid import, lye import, waste gas outlet, active carbon import, active carbon discharge port, steam pipe and detergent outlet.The advantages of utility model, is: having method simple, regenerated liquid can recycle, hydrogen peroxide is used in regenerative process almost all, any pollutant is not generated, and expense is low, and energy consumption is small, it is easy to operate, regeneration oxidation hydrogen peroxide and organic matter reaction, ultimately form carbon dioxide and water, do not generate any pollution.

Description

Granular activated carbon regenerative system device

Technical field

Utility model is related to granular activated carbon regenerative system engineering device technique field, is related to a kind of granular activated carbon regenerative system Device.

Background technique

Active carbon contains a large amount of micropores, has huge specific surface area, can be effectively removed coloration, stink, can remove water Middle most organic pollutants and certain inorganic matters, are widely used in sewage treatment and advanced treatment of wastewater.Due to its adsorption saturation After need to regenerate, regeneration needs special equipment, and because the device is complicated, investment is greatly.It is difficult in using area in-place regeneration.Because of regeneration Restriction, make active carbon application by a certain range of limitation.

The several method of regenerating active carbon is as follows at present；1, hot recycling method: hot recycling method is that current application is most, industrially Most mature regeneration method of active carbon.It is generally divided into dry, high temperature carbonization and activation three phases.In drying stage, mainly go Except the volatilizable ingredient on active carbon.High temperature carbonization stage is to keep a part of organic matter adsorbed on active carbon boiling, vaporization de- Attached, a part of organic matter is decomposed reaction, is generated small organic molecule and is desorbed out, residual components stay in active carbon hole As " fixed carbon ".In this stage, temperature is up to 800~900 DEG C, for the oxidation for avoiding active carbon, is generally vacuumizing Or it is carried out under inert atmosphere.In next activation stage, the gases such as CO2, CO, H2 or vapor are passed through in reaction kettle, with Activated carbon capillary is cleared up, so that it is restored absorption property, activation stage is the key that entire regeneration technology.Although hot recycling method has again Raw high-efficient, the characteristics of having a wide range of application, but in regenerative process, exist must external energy heating, investment and operating cost are higher Defect.Moreover, the iron dirt deposited in active carbon, calcium scale, the inorganic pollutions such as silicon dirt can not be removed by this method, Adsorption capacity after regenerating active carbon is caused to decline.Hot recycling method causes active carbon loss larger due to operation temperature height.Moreover, It generally is required to digging up active carbon into carry out regenerated offline, labor intensity is very big.2, bio-regeneration method: bio-regeneration method is Using the bacterium through taming, the organic matter adsorbed on active carbon is parsed, and further the process of H2O and CO2 are resolved into digestion. Bio-regeneration method is similar with the bioanalysis in sewage treatment, also there is aerobic method and anaerobic process.Due to active carbon itself Aperture very little, some only have several nanometers, and microorganism not can enter such hole, it has been generally acknowledged that can occur in regenerative process thin Born of the same parents' autolysis, i.e. cellular enzymes flow to extracellular, and active carbon has a suction-operated to enzyme, therefore forms enzymatic center in carbon surface, To promote pollutant to decompose, reach regenerated purpose.Bioanalysis is simple and easy, and investment and operating cost are lower, but there are institutes It takes time longer, by the far-reaching defect of water quality and temperature.Similarly, the iron dirt deposited in bio-regeneration method active carbon, Calcium scale, the inorganic pollutions such as silicon dirt, aluminium dirt can not be removed by this method, cause after regenerating active carbon under adsorption capacity Drop.It is adsorbed to active carbon to be difficult to biodegradable organic matter, bio-regeneration to microorganism poisonous and harmful substance, or after adsorbing Method inefficiency, marquis can be entirely ineffective when very much.3, wet air regeneration method: under conditions of high temperature and pressure, with oxygen or sky The oxidation operation adsorbed on active carbon under liquid phase state is resolved into a kind of processing side of small molecule as oxidant by gas Method, referred to as wet air regeneration method.Test the active carbon optimal condition of protoplast isolation obtained are as follows: 230 DEG C of regeneration temperature, the reproduction time 1h is oxygenated pO20.6MPa, adds charcoal amount 15g, amount of water 300mL.Regeneration efficiency reaches (45 ± 5) %, it was reported that following through 5 times Ring regeneration, regeneration efficiency only decline 3%.The main reason for partial oxidation of activated carbon surface micropore is regeneration efficiency decline. Wet air regeneration method equipment investment is high, and operating cost is very big, and operational danger is high, on-site sanitation bad environments.Due to again Raw mainly to use oxidation operation, to fouling caused by inert inorganic matter the problems such as is substantially invalid, and regeneration efficiency is low.4, solvent is again Think of a way: solvent regeneration process be using active carbon, solvent and the phase equilibrium relationship being adsorbed between matter three, by change temperature, The conditions such as the pH value of solvent, break adsorption equilibrium, and adsorbate is desorbed from active carbon.Solvent regeneration process is relatively specific for Those reversible adsorptions, such as absorption to high concentration, low boiling point organic wastewater.Its specific aim is stronger, and often a kind of solvent can only Certain pollutants are desorbed, and the pollutant kind in water treatment procedure is various, comes and go, accordingly, there exist a kind of specific solvents The relatively narrow defect of application range.Solvent regeneration process extremely has the effect of active carbon failure caused by some inorganic scalings, crystallization Limit.The disposition of the high concentrated organic waste liquid generated in organic solvent regenerative process is also a great problem, especially in the mistake of washing Cheng Zhong, the discharge of cleaning solution are usually only easy leakage by a through-hole and collection vessel docking.

Utility model content

The purpose of utility model is in view of the above-mentioned problems, providing a kind of and collection vessel seamless interfacing system and device.

In order to achieve the above objectives, utility model uses following technical proposal: 1, granular activated carbon regenerative system device, It is characterized in that, includes the following steps；(a) it dries: being dried granular activated carbon using steam or hot-air；(b) acid is molten Liquid impregnates: being impregnated using sulfuric acid to granular activated carbon；(c) it squeezes out acid water: being squeezed out acid solution with compressed air method； (d) it rinses: 1. granular activated carbon after step (b) processing being rinsed using light alkali solution, 2. using light alkali solution to step (b) handle after granular activated carbon rinse when pH value should be adjusted to 3, then be added hydrogen peroxide by the pollutant of seed activity carbon surface into 3. row oxidation continues to rinse, until pH value is adjusted to 6 to 7 using light alkali solution to granular activated carbon after step (b) processing；It is described Regenerating active carbon system and device, including regenerating tank, dioxygen water inlet, sulfuric acid import, lye import, waste gas outlet, active carbon Import, active carbon discharge port, steam pipe and detergent outlet, the upper end of the regenerating tank are provided with dioxygen water inlet, and dioxygen It is provided with sulfuric acid import on the right side of water inlet, lye import, and the right side of lye import are provided on the right side of the sulfuric acid import Waste gas outlet is offered, active carbon import is provided on the right side of the waste gas outlet, the active carbon discharge port setting is regenerating The right side body wall of tank, and steam pipe is provided with below active carbon discharge port, the bottom of regenerating tank is arranged in the detergent outlet End.

In a kind of above-mentioned granular activated carbon regenerative system device, in the step (b), the acid solution impregnates It is middle to be impregnated using the concentrated sulfuric acid, and the mass concentration of the concentrated sulfuric acid is not less than 80%, preferably 98% concentrated sulfuric acid.

In a kind of above-mentioned granular activated carbon regenerative system device, in the step (b), the acid solution leaching Bubble uses the volume of the concentrated sulfuric acid for 1-2 times of the active carbon volume, and soaking time 12 arrives r for 24 hours.

In a kind of above-mentioned granular activated carbon regenerative system device, the alkaline solution in the step (d) selects carbon One of sour sodium, sodium bicarbonate, potassium carbonate, saleratus, and alkaline solution is the hydroxyl solution of mass concentration 2-5%.

In a kind of above-mentioned granular activated carbon regenerative system device, the step (a) is described to use steam or xeothermic Air is dried up, and the active carbon moisture content after drying is below 50%.Selected steam be it is industrial common, can be low Pressure or mesohigh steam.

In a kind of above-mentioned granular activated carbon regenerative system device, washing in the step (d), using sodium carbonate Equal aqueous slkalis wash granular activated carbon after step (b) processing, stop rinsing when pH value is 3 until discharge water reaches, then Hydrogen peroxide is added to aoxidize the organic pollutant in granular activated carbon.

In a kind of above-mentioned granular activated carbon regenerative system device, the tank body and internal element of the granular activated carbon are The weak acid of resistance to strong acid highly basic weak base and anti-oxidant material.

Compared with prior art, it is the advantages of utility model: has method simple, regenerated liquid can recycle, double Oxygen water is used in regenerative process almost all, does not generate any pollutant, and expense is low, and energy consumption is small, easy to operate, and regeneration is used Aoxidize hydrogen peroxide and organic matter reaction, ultimately form carbon dioxide and water, do not generate any pollution, device when in use, to liquid Body can be avoided situations such as leaking during collecting.

Detailed description of the invention

It, below will be to embodiment for the clearer technical solution for illustrating the embodiments of the present invention or the prior art Or attached drawing needed to be used in the description of the prior art does simple introduction.

Fig. 1 is the structural schematic diagram of the utility model

Specific embodiment

Below in conjunction with the attached drawing used in new embodiment, the technical solution in utility model embodiment is carried out clear Chu, complete description, it is clear that described embodiment is only utility model a part of the embodiment, rather than whole implementation Example.Based on the embodiment in utility model, those of ordinary skill in the art are obtained without creative efforts Every other embodiment, belong to the range of utility model protection.

Granular activated carbon regenerative system device, includes the following steps；Include the following steps；(a) dry: using steam or Hot-air dries granular activated carbon；The step (a) is described to be dried up using steam or heated dry air, after drying Active carbon moisture content below 50%.Selected steam be it is industrial common, can be low pressure or mesohigh steam, (b) Acid solution impregnates: being impregnated using sulfuric acid to granular activated carbon；The acid solution is impregnated in impregnating using the concentrated sulfuric acid, And the mass concentration of the concentrated sulfuric acid is not less than 80%, preferably 98% concentrated sulfuric acid, the acid solution impregnates, using the body of the concentrated sulfuric acid Product is 1-2 times of the active carbon volume, and soaking time 12 (c) squeezes out acid water: will be acid with compressed air method to r for 24 hours Solution squeezes out；(d) it rinses: 1. granular activated carbon after step (b) processing being rinsed using light alkali solution, 2. uses light alkali soluble PH value should be adjusted to 3 when liquid rinses granular activated carbon after step (b) processing, and hydrogen peroxide is then added by seed activity carbon surface Pollutant is aoxidized, and 3. continues to rinse to granular activated carbon after step (b) processing using light alkali solution, until pH value is adjusted to 6 To 7；One of alkaline solution selection sodium carbonate, sodium bicarbonate, potassium carbonate, saleratus in the step (d), and alkali Property solution be mass concentration 2-5% hydroxyl solution, the washing in the step (d), using aqueous slkalis pair such as sodium carbonate Granular activated carbon is washed after step (b) processing, stops rinsing when pH value is 3 until discharge water reaches, hydrogen peroxide is then added Organic pollutant in granular activated carbon is aoxidized, the regenerating active carbon system and device, including regenerating tank 1, dioxygen Water inlet 2, sulfuric acid import 3, lye import 4, waste gas outlet 5, active carbon import 6, active carbon discharge port 7, steam pipe 8 and washing Agent outlet 9, the upper end of the regenerating tank 1 is provided with dioxygen water inlet 2, and the right side of dioxygen water inlet 2 is provided with sulfuric acid import 3, the right side of the sulfuric acid import 3 is provided with lye import 4, and the right side opening of lye import 4 is equipped with waste gas outlet 5, described useless The right side of gas outlet 5 is provided with active carbon import 6, and the right side body wall of regenerating tank 1 is arranged in the active carbon discharge port 7, and living The lower section of property charcoal discharge port 7 is provided with steam pipe 8, and the bottom end of regenerating tank 1, detergent outlet 9 is arranged in the detergent outlet 9 Front end is equipped with interconnecting piece 10, and the section of the interconnecting piece 10 is trapezoidal in what is stood upside down, and interconnecting piece rear end is equipped with the gear of baffle described in baffle 11 Piece 11 it is rounded, and diameter be greater than interconnecting piece 10 bottom surface diameter.

The foregoing is merely utility model preferred embodiments, all in utility model not to limit utility model Spirit and principle within, any modification, equivalent substitution, improvement and etc. done should be included in the protection scope of utility model Within.

Claims (3)

1. granular activated carbon regenerative system device, including regenerating tank (1), dioxygen water inlet (2), sulfuric acid import (3), lye import (4), waste gas outlet (5), active carbon import (6), active carbon discharge port (7), steam pipe (8) and detergent outlet (9), feature Be: the upper end of the regenerating tank (1) is provided with dioxygen water inlet (2), and be provided on the right side of dioxygen water inlet (2) sulfuric acid into Mouthful (3) are provided with lye import (4) on the right side of the sulfuric acid import (3), and the right side opening of lye import (4) goes out equipped with exhaust gas Mouthful (5) are provided with active carbon import (6) on the right side of the waste gas outlet (5), and active carbon discharge port (7) setting is regenerating The right side body wall of tank (1), and steam pipe (8) are provided with below active carbon discharge port (7), detergent outlet (9) setting In the bottom end of regenerating tank (1), detergent outlet (9) front end is equipped with interconnecting piece (10), and the section of the interconnecting piece (10) is in handstand Trapezoidal, interconnecting piece rear end is equipped with baffle (11).

2. granular activated carbon regenerative system device according to claim 1, which is characterized in that the tank of the granular activated carbon Body and internal element are the weak acid of resistance to strong acid highly basic weak base and anti-oxidant material.

3. granular activated carbon regenerative system device according to claim 1, which is characterized in that the baffle baffle (11) It is rounded, and diameter is greater than the diameter of the bottom surface of interconnecting piece (10).