CN106975461A - A kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology - Google Patents

A kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology Download PDF

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Publication number
CN106975461A
CN106975461A CN201710337711.1A CN201710337711A CN106975461A CN 106975461 A CN106975461 A CN 106975461A CN 201710337711 A CN201710337711 A CN 201710337711A CN 106975461 A CN106975461 A CN 106975461A
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water hyacinth
dry powder
adsorbent
uranium
water
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CN201710337711.1A
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黄德娟
陈睿
罗帅
张世杰
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East China Institute of Technology
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East China Institute of Technology
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    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/36—Means for collection or storage of gas; Gas holders
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/04—Filters; Permeable or porous membranes or plates, e.g. dialysis
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M43/00—Combinations of bioreactors or fermenters with other apparatus
    • C12M43/08—Bioreactors or fermenters combined with devices or plants for production of electricity
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M45/00—Means for pre-treatment of biological substances
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
    • 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
    • C02F2101/006—Radioactive compounds
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology, adsorbent was the dry powder of water hyacinth of 200 mesh standard sieves, adsorbent adsorption uranium is used as with dry powder of water hyacinth, alleviate the burden that water hyacinth is caused to ecological environment, the uranium of absorptive collection can be recycled, it can also be formed methane in the last handling process of adsorbent, whole technological process environmental protection, economize on resources, recycling treatment has been carried out to the full extent to tailings liquid and water hyacinth, turn waste into wealth, remarkable in economical benefits.

Description

A kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology
Technical field
The invention belongs to environmental technology field, be related to a kind of heavy metal in water ion biomass adsorbent and adsorption uranium and Aftertreatment technology.
Background technology
The heavy metal ion produced with developing rapidly for industry such as nuclear industry, smelting and processing of metals, electronics industries is led to Cross the approach such as soil, water, air and enter water body, and be enriched with by modes such as food chains, to the healthy of the mankind and life State environment all generates the harm that should not be underestimated, because on the one hand radioactive metal ion has radiological hazard, on the other hand The also characteristic of chemical toxicity, therefore the harm that the radioactivity heavy metal pollution that produces of nuclear industry is caused is particularly acute.Nuclear industry The processing of waste water, gangue and rear end radioactive wastewater that the not general uranium ore exploitation for having a front end of the pollution of generation is produced and disposal and The wastewater and waste materials that some core relevant departments produce.Only because the radioactivity effluent containing heavy metal ions that these aspects are produced are just difficult With quick, efficient, economic processing and last handling process is also troublesome, if occurring great nuclear accident（Such as：Chernobyl Nuclear accident）When, the pollution of radioactive wastewater is just even more serious and is difficult to control.
By taking uranium as an example, although traditional uranium removes technique（Such as：Ion exchange, extraction, precipitation）It is very ripe and apply In production, but they remain the problems such as such as economic consumption is big, processing is cumbersome；And biomass adsorbent is not only cheap It is easy to get, and the water pollution of uranium can be solved.The research that biomass adsorbent is used for Adsorption of Radioactive heavy metal is involved in, but The post processing of absorption is difficult point, and the radioactivity heavy metal ion after how adsorbent is adsorbed is green, environmentally friendly, safely parse Out it is worth research.
The content of the invention
The purpose of the present invention is to set up the process route of uranium wastewater treatment, using biomass water cucurbit as adsorbent, is had Wide material sources, cheap and easy to get, absorption property are high, and marsh gas power generation, biogas hair are can be applied to environment non-secondary pollution and in the later stage Electricity can not only parse the uranium in adsorbent, also have the advantages that to produce economic benefit.
The technical solution adopted by the present invention is：
Dry powder of water hyacinth adsorbent was the dry powder of water hyacinth of 200 mesh standard sieves.
The preparation process of dry powder of water hyacinth adsorbent is as follows：
（1）Will adopt come water hyacinth first with running water rinse several times, so as to wash water hyacinth surface presence dirt, dust with And other debris；
（2）Cleaned water hyacinth is placed on 20%（Mass concentration）NaOH solution in soak, stirring alkalization 90min at 30 DEG C, Deionized water rinsing is used again；
（3）Washed water hyacinth is placed in 80 DEG C of baking ovens and dried；
（4）Crush, cross 200 mesh standard sieves, dry powder of water hyacinth adsorbent is made, seal stand-by.
The adsorption uranium technique of dry powder of water hyacinth adsorbent, optimal adsorption condition is that dry powder of water hyacinth dosage is 1g/L, is inhaled The attached time is 180min, and absorption pH is 3.0.
The adsorption uranium and aftertreatment technology of dry powder of water hyacinth adsorbent, include process and the dry powder of water hyacinth absorption of adsorption uranium The postprocessing working procedures of agent, technological process device include reaction tank, pump, reservoir, air storage fermentation integrated methane tank, air accumulator, Generator, cache pool and recovery pond, technological process are as follows：
（1）Tailings liquid in Uranium tailings dam is by being pumped into tailings liquid cache pool；
（2）Tailings liquid is flowed into stirring and adsorbing pond, dry powder of water hyacinth adsorbent is entered into stirring and adsorbing pond by hourglass shape pipeline；
（3）After the absorption of certain time, the suspension containing dry powder of water hyacinth adsorbent in stirring and adsorbing pond is passed through into pipe Road imports in air storage fermentation integrated methane tank, tank for sewage gas and is provided with filter；
（4）Dry powder of water hyacinth suspension after filtering gained filtrate import reservoir, then be pumped back to tailings liquid cache pool with Continue absorption process after an action of the bowels；
（5）The dry powder of water hyacinth adsorbent of gained passes through digestion phase, production acid phase, methane phase stage in tank for sewage gas after filtering Biogas is ultimately generated, biogas enters air accumulator by filter screen, then carries out marsh gas power generation via escape pipe or provide gas for domestic use；
（6）Reclaim the reaction residues in tank for sewage gas.
Beneficial effect of the present invention is obvious：With dry powder of water hyacinth as adsorbent adsorption uranium, water hyacinth is alleviated to ecological ring The burden that border is caused, also mitigates pollution of the uranium to environment；The uranium of absorptive collection can be recycled, and can produce huge economy Benefit；It can also be formed methane in the last handling process of adsorbent, life supply can be used for after biogas is purified, hair is can be used for Electricity；Whole technological process environmental protection, economize on resources, economic benefit it is good, tailings liquid and water hyacinth are carried out to the full extent Recycling treatment, turns waste into wealth.
Brief description of the drawings
Fig. 1 is the influence curve figure that solution ph adsorbs U (VI) to dry powder of water hyacinth adsorbent；
Fig. 2 is the influence curve figure that dry powder of water hyacinth adsorbent dosage adsorbs U (VI) to dry powder of water hyacinth；
Fig. 3 is the influence curve figure that adsorption time adsorbs U (VI) to dry powder of water hyacinth；
Fig. 4 is absorption and the aftertreatment technology route map of the present invention.
Embodiment
Tie with specific embodiment that the present invention is described further below.
Embodiment 1
As shown in figure 1, constant in control other conditions, in the case of this unitary variant of only pH, experiment condition is in room temperature （298 K）Under, in 100ml solution, dosage is 0.1g dry powder of water hyacinth adsorbents, and the initial μ g/L of uranium concentration 15 are used HCl and NaOH solution regulation solution ph, dry powder of water hyacinth adsorbent change with the change of pH value to the adsorption capacity of uranium, inhaled After attached 4h, adsorption rate highest when solution pH value is 3 or so.
Embodiment 2
As shown in Fig. 2 control other conditions it is constant, only in the case of this unitary variant of dosage, experiment condition be Room temperature（298 K）Under, in 100ml solution, pH is 3, the initial μ g/L of uranium concentration 15, after absorption 4h, when modified dry powder of water hyacinth Consumption be 0.1g when, clearance highest, up to 80% or so.
Embodiment 3
From figure 3, it can be seen that it is constant in control other conditions, only in the case of this unitary variant of adsorption time, experiment condition For in room temperature（298 K）Under, in 100ml solution, pH is 3, and dosage is 0.1g, the initial μ g/L of uranium concentration 15, modified water calabash Infiltration rate of the capacity sorbent time of reed dry powder adsorption uranium in 180min is fast, and poised state is reached afterwards.
Embodiment 4
Technological process is as follows：
（1）Tailings liquid in Uranium tailings dam first passes through pump（300m3/h）It is pumped into tailings liquid cache pool（1000m3）；
（2）Stirring and adsorbing pond is flowed into by pipeline again（800m3）, while dry powder of water hyacinth adsorbent（Crushed 200 mesh sieves）Through Hourglass shape pipeline is crossed into stirring and adsorbing pond；
（3）After the absorption of certain time, the suspension containing dry powder of water hyacinth adsorbent in stirring and adsorbing pond is passed through into pipe Road imports tank for sewage gas（1300m3）, tank for sewage gas is interior to be provided with filter；
（4）Filtrate after the suspension filtering of dry powder of water hyacinth adsorbent imports reservoir（800m3）, delayed with tailings liquid is pumped back to Pond is deposited subsequently repeatedly to be adsorbed in stirring and adsorbing pond；
（5）Dry powder of water hyacinth after filtering is by reaction in tank for sewage gas, and the biogas of generation passes through filter screen（Prevent the outer of aerosol Let out）Into air accumulator（800m3）Marsh gas power generation is carried out via escape pipe or gas for domestic use is provided again；
（6）Reaction residues are reclaimed for uranium.
Economic benefit of engineering is calculated：
1. an engineering day processing Uranium tailings liquid about 50m3, uranium content is 5*10-6G/ml, day obtains U3O8Measure 33kg.Produce U per year3O8 12 tons of amount, is reclaimed as uranium resource, is worth considerable, and Reclaiming benefit is up to 10.8 hundred million RMB.
2. produce biogas 1500m daily3, generate electricity 2250kwh daily, year processing mine tailing 18250m3, produce biogas 547500m per year3, In year generating 821250kwh, calculate, make a profit 410,000 yuan by 0.5 yuan/kwh.
Marsh gas power generation cost：9.84 ten thousand yuan,
Marsh gas power generation total revenue：31.16 ten thousand yuan.

Claims (5)

1. a kind of dry powder of water hyacinth adsorbent, it is characterised in that adsorbent was the dry powder of water hyacinth of 200 mesh standard sieves.
2. a kind of dry powder of water hyacinth adsorbent according to claim 1, its preparation process is as follows：
（1）Will adopt come water hyacinth first with running water rinse several times, so as to wash water hyacinth surface presence dirt, dust with And other debris；
（2）Cleaned water hyacinth is placed on 20%（Mass concentration）NaOH solution in soak, stirring alkalization 90min at 30 DEG C, Deionized water rinsing is used again；
（3）Washed water hyacinth is placed in 80 DEG C of baking ovens and dried；
（4）Crush, cross 200 mesh standard sieves, dry powder of water hyacinth adsorbent is made, seal stand-by.
3. a kind of absorbing process of dry powder of water hyacinth adsorbent, it is characterised in that dry powder of water hyacinth adsorbent dosage is 1g/L, Adsorption time is 180min, and absorption pH is 3.0.
4. a kind of adsorption uranium and aftertreatment technology of dry powder of water hyacinth adsorbent, it is characterised in that process including adsorption uranium and Postprocessing working procedures after absorption, technological process is as follows：
（1）Tailings liquid in Uranium tailings dam is by being pumped into tailings liquid cache pool；
（2）Tailings liquid is flowed into stirring and adsorbing pond, dry powder of water hyacinth adsorbent is entered into stirring and adsorbing pond by hourglass shape pipeline；
（3）After the absorption of certain time, the suspension containing dry powder of water hyacinth adsorbent in stirring and adsorbing pond is passed through into pipe Road imports air storage fermentation integrated methane tank；
（4）It is provided with filter in tank for sewage gas, the filtrate of dry powder of water hyacinth suspension gained after filtering imports reservoir, then uses Tailings liquid cache pool is pumped back to so as to subsequent adsorbtion process；
（5）The dry powder of water hyacinth adsorbent of gained produces biogas in tank for sewage gas by reaction after filtering, and biogas is entered by filter screen Enter air accumulator；
（6）Reclaim the reaction residues in tank for sewage gas.
5. a kind of adsorption uranium technique of dry powder of water hyacinth adsorbent according to claim 4, it is characterised in that stirring and adsorbing In pond, dry powder of water hyacinth adsorbent dosage is 1g/L, and adsorption time is 180min, and absorption pH is 3.0.
CN201710337711.1A 2017-05-15 2017-05-15 A kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology Pending CN106975461A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN108101139A (en) * 2017-10-11 2018-06-01 东华理工大学 A kind of water hyacinth biomass uranium extraction method
CN108109712A (en) * 2017-10-11 2018-06-01 东华理工大学 Water hyacinth biomass adopts uranium series system
CN111167416A (en) * 2019-10-28 2020-05-19 五邑大学 Preparation method of methylene blue adsorbent
CN115261133A (en) * 2022-07-20 2022-11-01 深圳波顿香料有限公司 Method for preparing natural spice refined substance for cigarettes with low Pb and As contents

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108101139A (en) * 2017-10-11 2018-06-01 东华理工大学 A kind of water hyacinth biomass uranium extraction method
CN108109712A (en) * 2017-10-11 2018-06-01 东华理工大学 Water hyacinth biomass adopts uranium series system
CN111167416A (en) * 2019-10-28 2020-05-19 五邑大学 Preparation method of methylene blue adsorbent
CN115261133A (en) * 2022-07-20 2022-11-01 深圳波顿香料有限公司 Method for preparing natural spice refined substance for cigarettes with low Pb and As contents

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