CN106268628A - A kind of preparation method of the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate - Google Patents

A kind of preparation method of the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate Download PDF

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Publication number
CN106268628A
CN106268628A CN201610742269.6A CN201610742269A CN106268628A CN 106268628 A CN106268628 A CN 106268628A CN 201610742269 A CN201610742269 A CN 201610742269A CN 106268628 A CN106268628 A CN 106268628A
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modified
adsorbent
inorganic
ammonia nitrogen
preparation
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CN201610742269.6A
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Chinese (zh)
Inventor
陈坤
黄开明
陈建平
石艳艳
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WUHAN TIANYUAN ENVIRONMENTAL PROTECTION Co Ltd
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WUHAN TIANYUAN ENVIRONMENTAL PROTECTION Co Ltd
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Priority to CN201610742269.6A priority Critical patent/CN106268628A/en
Publication of CN106268628A publication Critical patent/CN106268628A/en
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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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/165—Natural alumino-silicates, e.g. zeolites
    • 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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • 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
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth
    • 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
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • 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
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06—Contaminated groundwater or leachate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N

Abstract

The present invention relates to the preparation method of a kind of high effective and modified adsorbent processing high ammonia nitrogen landfill leachate, under the assistance of microwave exposure, natural adsorbent carrying out Inorganic whisker modified, its step is as follows: natural adsorbent is screened, washs, dries by (1).(2) weigh the natural adsorbent after a certain amount of drying, under microwave exposure, in the inorganic modified agent solution of variable concentrations, in water-bath after heated at constant temperature, wash, be dried, i.e. can get inorganic modified adsorbent.(3) weigh inorganic modified adsorbent, under microwave exposure, in the organically-modified agent solution of variable concentrations, in water-bath after heated at constant temperature, wash, be dried, i.e. can get Inorganic whisker modified adsorbent.This Inorganic whisker modified adsorbent can be used for pretreatment and the advanced treating of high ammonia nitrogen landfill leachate, the advantages of good adsorption effect to ammonia nitrogen, and preparation cost is low, and renewable recycles.

Description

A kind of preparation method of the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate
Technical field
The present invention relates to the high ammonia nitrogen rubbish of urban refuse sanitary landfill, garbage incinerating power plant, garbage transfer station etc. Percolate process field, is specifically related to the preparation method of a kind of high effective and modified adsorbent processing high ammonia nitrogen landfill leachate.
Background technology
Percolate is a kind of high concentrated organic wastewater produced in garbage loading embeading and stacking process, has Organic substance dense The features such as degree height, complicated component, toxicity are big.On leachate treatment technology, domestic general employing with " biochemistry+film " as core Group technology, Biochemical method percolate, affected by percolate water quality characteristics, low for biodegradability, difficult The Organic substance of degraded, and the waste water that toxicity is high, the removal effect of Biochemical method is the most poor, and percolate middle and high concentration Ammonia nitrogen can have strong inhibitory action to microorganism, and application is very restricted；The most common ammonia nitrogen preconditioning technique bag Including: chemical precipitation method, air stripping method, ion exchange, break point chlorination etc., each technology has respective pluses and minuses and fits Use condition.The pluses and minuses of several ammonia nitrogen preprocess methods are as shown in the table:
The pluses and minuses of table 1 several ammonia nitrogen preprocess method
Therefore, for the percolate of high-concentration ammonia-nitrogen, develop a kind of technically feasible, economically can also accept Pretreating process reduce the ammonia nitrogen concentration in percolate, alleviating ammonia nitrogen to the adverse effect of subsequent biochemical system is very must Want and significant.
Summary of the invention
The problem existed based on above-mentioned prior art, the present invention provides a kind of and processes efficiently changing of high ammonia nitrogen landfill leachate Property adsorbent preparation method, natural adsorbent is carried out inorganic-organic hybrid modified.This inorganic-organic hybrid modification is adsorbed Agent is used for pretreatment and advanced treating, the advantages of good adsorption effect to ammonia nitrogen of high ammonia nitrogen landfill leachate, and preparation cost is low, and can be again Life recycles.
For solving above-mentioned technical problem, the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate that the present invention proposes Preparation method, its preparation process is as follows:
Comprise the following steps:
Step one, screens natural adsorbent, wash, dries；
Step 2, weighs the natural adsorbent after a certain amount of drying, under intensity is 200～1000W microwave exposures, and Yu Rong Liquid concentration is in the inorganic modified agent solution of 50g/l～200g/l, in the water-bath that temperature is 60～80 DEG C heated at constant temperature 1～ After 3 hours, wash, be dried, obtain inorganic modified adsorbent；
Step 3, weighs a certain amount of inorganic modified adsorbent, under conditions of intensity is 200～1000W microwave exposures, In the organically-modified agent solution that solution concentration is 2g/l～10g/l, heated at constant temperature 1 in the water-bath that temperature is 60～80 DEG C ～after 3 hours, wash, be dried, i.e. obtain inorganic-organic hybrid modified adsorbent.
Preferably, in described step one, described natural adsorbent is natural zeolite, bentonite, diatomaceous one.
Preferably, in step one, the sieve of 60～200 mesh is selected in described screening.
Preferably, in step 2, described is inorganic modified for the one in sodium chloride, aluminum chloride, iron chloride.
Preferably, in step 3, described is organically-modified for cetyl trimethylammonium bromide (CTAB), detergent alkylate One in sodium sulfonate (SDBS).
The present invention utilizes cheap natural adsorbent raw material, under microwave exposure, natural adsorbent is carried out inorganic-organic Composite modified.This inorganic-organic hybrid modified adsorbent is used for pretreatment and the advanced treating of high ammonia nitrogen landfill leachate, to ammonia The advantages of good adsorption effect of nitrogen, preparation cost is low, and renewable recycles.
Detailed description of the invention
Embodiment 1
Using adsorbent based on natural zeolite, it is carried out inorganic-organic hybrid modification, its preparation methods steps is such as Under:
(1) the natural zeolite sieve of 60 mesh is carried out screening, washs, dries.
(2) natural zeolite after a certain amount of drying is weighed, under conditions of intensity is 200W microwave exposure, in 50g/l chlorine Changing in sodium modifier solution, in 60 DEG C of water-baths, heated at constant temperature is after 2 hours, washs, is dried, i.e. can get inorganic modified absorption Agent.
(3) a certain amount of inorganic modified adsorbent is weighed, under conditions of 500W microwave exposure, organic in the CTAB of 8g/l In modifier solution, in 70 DEG C of water-baths, heated at constant temperature is after 2 hours, washs, is dried, i.e. can get inorganic-organic hybrid and change Property adsorbent 1.
Embodiment 2
Using adsorbent based on natural montmorillonite, it is carried out inorganic-organic hybrid modification, its preparation methods steps is such as Under:
(1) the natural montmorillonite sieve of 100 mesh is carried out screening, washs, dries.
(2) natural montmorillonite after a certain amount of drying is weighed, under conditions of 500W microwave exposure, in 100g/l aluminum chloride In modifier solution, in 80 DEG C of water-baths, heated at constant temperature is after 1 hour, washs, is dried, obtains inorganic modified adsorbent.
(3) a certain amount of inorganic modified adsorbent is weighed, under conditions of 1000W microwave exposure, respectively at 10g/l's In the organically-modified agent solution of SDBS, in 70 DEG C of water-baths, heated at constant temperature is after 3 hours, wash, be dried, i.e. can get inorganic-have The composite modified adsorbent of machine 2.
Embodiment 3
Using adsorbent based on natural diatomaceous earth, it is carried out inorganic-organic hybrid modification, its preparation methods steps is such as Under:
(1) the natural zeolite sieve of 80 mesh is carried out screening, washs, dries.
(2) natural diatomaceous earth after a certain amount of drying is weighed, under conditions of 1000W microwave exposure, respectively at 80g/l chlorine Changing in ferrum modifier solution, in 65 DEG C of water-baths, heated at constant temperature is after 1 hour, washs, is dried, i.e. can get inorganic modified absorption Agent.
(3) a certain amount of inorganic modified adsorbent is weighed, under conditions of 800W microwave exposure, respectively at the 12 of 2g/l In sodium alkyl benzene sulfonate (SDBS) organically-modified agent solution, in 70 DEG C of water-baths, heated at constant temperature is after 2 hours, washs, is dried, i.e. Available inorganic-organic hybrid modified adsorbent 3.
Embodiment 4
Using adsorbent based on natural zeolite, it is carried out inorganic-organic hybrid modification, its preparation methods steps is such as Under:
(1) the natural zeolite sieve of 90 mesh is carried out screening, washs, dries.
(2) natural zeolite after a certain amount of drying is weighed, under conditions of 600W microwave exposure, respectively at 60g/l chlorination In sodium modifier solution, in 70 DEG C of water-baths, heated at constant temperature is after 1.5 hours, washs, is dried, i.e. can get inorganic modified absorption Agent.
(3) a certain amount of inorganic modified adsorbent is weighed, under conditions of 200W microwave exposure, respectively at the CTAB of 5g/l In organically-modified agent solution, in 80 DEG C of water-baths, heated at constant temperature is after 2 hours, washs, is dried, i.e. can get inorganic-organic multiple Close modified adsorbent 4.
Embodiment 5
Using adsorbent based on natural diatomaceous earth, it is carried out inorganic-organic hybrid modification, its preparation methods steps is such as Under:
(1) the natural diatomaceous earth sieve of 70 mesh is carried out screening, washs, dries.
(2) natural zeolite after a certain amount of drying is weighed, under conditions of 200～800W microwave exposures, in 60g/l chlorination In aluminum modifier solution, in 70 DEG C of water-baths, heated at constant temperature is after 2 hours, washs, is dried, i.e. can get inorganic modified absorption Agent.
(3) a certain amount of inorganic modified adsorbent is weighed, under conditions of 800W microwave exposure, in the dodecyl of 4g/l In benzene sulfonic acid sodium salt (SDBS) organically-modified agent solution, in 65 DEG C of water-baths, heated at constant temperature is after 3 hours, washs, is dried, To inorganic-organic hybrid modified adsorbent 5.
In the various embodiments described above, it is immersed in the absorption in sodium chloride, aluminum chloride, iron chloride inorganic solution with microwave exposure Agent, can make Na+、Al3+、Fe3+It is easier to the Ca in displacement sorption agent hole2+, the effective aperture of adsorbent becomes big, sterically hindered Diminishing, inner diffusing rate is accelerated, and the modified adsorbent under microwave exposure is more preferable to the adsorption effect of ammonia nitrogen.
With natural adsorbent before modified, inorganic-organic hybrid modified adsorbent 1-5 is respectively used to high ammonia nitrogen rubbish ooze The adsorption experiment of filtrate, the adsorption effect of ammonia nitrogen is promoted respectively respectively by modified adsorbent with natural adsorbent before modified 43%, 45%, 52%, 33% and 36%.Prove the modified inorganic-organic hybrid modified adsorbent adsorption effect to ammonia nitrogen Significantly improve.The preparation cost of the present invention is low, and renewable recycles.
Should be noted that this detailed description of the invention is the exemplary illustration being the present invention and does not limit its Protection domain, the present invention can also be made the change of some unsubstantialities by those skilled in the art, as long as without creative work And the improvement that this patent is carried out, all within the protection domain of this patent.

Claims (5)

1. the preparation method of the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate, it is characterised in that include following Step:
Step one, screens natural adsorbent, wash, dries；
Step 2, weighs the natural adsorbent after a certain amount of drying, under intensity is 200～1000W microwave exposures, dense in solution In the degree inorganic modified agent solution for 50g/l～200g/l, in the water-bath that temperature is 60～80 DEG C, heated at constant temperature 1～3 is little Shi Hou, washs, is dried, obtain inorganic modified adsorbent；
Step 3, weighs a certain amount of inorganic modified adsorbent, under conditions of intensity is 200～1000W microwave exposures, and Yu Rong Liquid concentration is in the organically-modified agent solution of 2g/l～10g/l, heated at constant temperature 1～3 in the water-bath that temperature is 60～80 DEG C After hour, wash, be dried, i.e. obtain inorganic-organic hybrid modified adsorbent.
The preparation method of the high effective and modified adsorbent of the high ammonia nitrogen landfill leachate of process the most according to claim 1, it is special Levying and be, in step one, described natural adsorbent is natural zeolite, bentonite, diatomaceous one.
The preparation method of a kind of high effective and modified adsorbent processing high ammonia nitrogen landfill leachate the most according to claim 1, It is characterized in that, in step one, the sieve of 60～200 mesh is selected in described screening.
The preparation method of a kind of high effective and modified adsorbent processing high ammonia nitrogen landfill leachate the most according to claim 1, It is characterized in that, in step 2, described is inorganic modified for the one in sodium chloride, aluminum chloride, iron chloride.
The preparation method of a kind of high effective and modified adsorbent processing high ammonia nitrogen landfill leachate the most according to claim 1, It is characterized in that, in step 3, described is organically-modified for cetyl trimethylammonium bromide (CTAB), DBSA One in sodium (SDBS).
CN201610742269.6A 2016-08-26 2016-08-26 A kind of preparation method of the high effective and modified adsorbent processing high ammonia nitrogen landfill leachate Pending CN106268628A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106902743A (en) * 2017-02-10 2017-06-30 常涛 A kind of preparation method of water treatment agent and application
CN107970885A (en) * 2017-10-25 2018-05-01 株洲冶炼集团股份有限公司 Compound ammonia nitrogen adsorbent prepared by a kind of microwave radiation method and preparation method thereof
CN109985600A (en) * 2019-04-25 2019-07-09 湖南工程学院 A kind of modified meerschaum and its application in the treatment of waste water
CN110877999A (en) * 2019-10-11 2020-03-13 广西南宁大地肥田农业科技有限公司 Zeolite-containing soil improvement type organic fertilizer and preparation method thereof

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CN105597668A (en) * 2015-09-23 2016-05-25 辽宁石油化工大学 Preparation method and application of modified zeolite
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106902743A (en) * 2017-02-10 2017-06-30 常涛 A kind of preparation method of water treatment agent and application
CN107970885A (en) * 2017-10-25 2018-05-01 株洲冶炼集团股份有限公司 Compound ammonia nitrogen adsorbent prepared by a kind of microwave radiation method and preparation method thereof
CN109985600A (en) * 2019-04-25 2019-07-09 湖南工程学院 A kind of modified meerschaum and its application in the treatment of waste water
CN109985600B (en) * 2019-04-25 2021-12-24 湖南工程学院 Modified sepiolite and application thereof in wastewater treatment
CN110877999A (en) * 2019-10-11 2020-03-13 广西南宁大地肥田农业科技有限公司 Zeolite-containing soil improvement type organic fertilizer and preparation method thereof

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Inventor after: Huang Kaiming

Inventor after: Shi Yanyan

Inventor after: Chen Jianping

Inventor after: Chen Kun

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Application publication date: 20170104