CN103331138B - A kind of preparation method of modification clean water sludge ammonia nitrogen adsorbent - Google Patents
A kind of preparation method of modification clean water sludge ammonia nitrogen adsorbent Download PDFInfo
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- CN103331138B CN103331138B CN201310308975.6A CN201310308975A CN103331138B CN 103331138 B CN103331138 B CN 103331138B CN 201310308975 A CN201310308975 A CN 201310308975A CN 103331138 B CN103331138 B CN 103331138B
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Abstract
The present invention patent discloses a kind of preparation method of modification clean water sludge ammonia nitrogen adsorbent, this ammonia nitrogen adsorbent utilizes waterworks clean water sludge for raw material, zeolite structured for the classes such as described clean water sludge modification becomes short texture, hole abundant and for ammonia nitrogen absorption.Adopt technical solution of the present invention, the adsorption effect of clean water sludge to ammonia nitrogen can be made more obviously to improve, and ammonia nitrogen removal frank significantly improves, close to the adsorption effect of commodity zeolite to ammonia nitrogen.
Description
Technical field
The present invention relates to a kind of preparation method of modification clean water sludge ammonia nitrogen adsorbent.
Background technology
Ammonia nitrogen is another important polluter of body eutrophication and environmental pollution, enter water body and can cause water hypoxia, grow unwanted aquatic organism, cause fish poisoning, although clean water sludge is due to containing aluminium, iron isoreactivity component, successfully can realize the absorption to phosphorus in water by the mode such as ligand exchange, co-precipitation, but it is poor to be directly used in ammonia nitrogen effect in adsorbed water.
Clean water sludge, as the accessory substance of waterworks, containing a large amount of inorganic coagulants, carries out resource to it and recycles significant.
Current zeolite and modified product thereof remove the good adsorbent of ammonia nitrogen effect because becoming by means of performances such as its short texture, hole enrich, the present invention attempts clean water sludge modification being prepared into the zeolite structured product of class and being used for ammonia nitrogen absorption, experimental result shows, the adsorption effect of products obtained therefrom to ammonia nitrogen more obviously improves, and ammonia nitrogen removal frank significantly improves.
Summary of the invention
The object of the invention is to attempt clean water sludge modification to become the classes such as short texture, hole enrich zeolite structured and for ammonia nitrogen absorption.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A preparation method for modification clean water sludge ammonia nitrogen adsorbent, comprises the following steps:
Step 1) by dehydration, dry after clean water sludge carry out pulverizing, being screened into mud granule;
Step 2) 2mol/L sulfuric acid is added in mud granule, under ul-trasonic irradiation, react 30min ~ 60min;
Step 3) will react products therefrom stratification, get its sludge settling, be referred to as to reclaim mud and dry for standby;
Step 4) adds sodium metasilicate (controlling silica alumina ratio in 6: 1 ~ 20: 1 scope), sodium hydrate aqueous solution (1.5mol/L ~ 2.5mol/L) in recovery mud, (control temperature is at 80 DEG C ~ 100 DEG C) reaction 30min ~ 50min under ultrasonication;
Step 5), by product centrifugation, gets its supernatant;
Step 6), under mechanical agitation, regulates supernatant pH value to 6 ~ 8 with the concentrated sulfuric acid;
Step 7) carries out suction filtration to the product after PH adjustment, gets filter cake;
Step 8) distilled water is by filter cake furnishing pulpous state (liquid-solid ratio is 1: 1 ~ 1: 2);
Slurry is placed in the withstand voltage reactor of inner liner polytetrafluoroethylene by step 9), at 100 DEG C ~ 120 DEG C temperature, react 2h ~ 8h;
Step 10) carries out suction filtration to reacted product, is placed by filter cake in evaporating dish and dries at 100 DEG C.
The invention has the beneficial effects as follows:
Adopt technical solution of the present invention, the characteristic that products obtained therefrom also has short texture, hole enriches, the adsorption effect of ammonia nitrogen is more obviously improved, ammonia nitrogen removal frank significantly improves, close to the adsorption effect of commodity zeolite to ammonia nitrogen, meanwhile, this ammonia nitrogen adsorbent abundant raw material source, preparation method is simple, preparation process is quick, and the recycling for clean water sludge further provides an effective way.
Detailed description of the invention
A preparation method for modification clean water sludge ammonia nitrogen adsorbent, comprises the following steps:
Step 1) by dehydration, dry after clean water sludge carry out pulverizing, being screened into mud granule;
Step 2) 2mol/L sulfuric acid is added in mud granule, under ul-trasonic irradiation, react 30min ~ 60min;
Step 3) will react products therefrom stratification, get its sludge settling, be referred to as to reclaim mud and dry for standby;
Step 4) adds sodium metasilicate (controlling silica alumina ratio in 6: 1 ~ 20: 1 scope), sodium hydrate aqueous solution (1.5mol/L ~ 2.5mol/L) in recovery mud, (control temperature is at 80 DEG C ~ 100 DEG C) reaction 30min ~ 50min under ultrasonication;
Step 5), by product centrifugation, gets its supernatant;
Step 6), under mechanical agitation, regulates supernatant pH value to 6 ~ 8 with the concentrated sulfuric acid;
Step 7) carries out suction filtration to the product after PH adjustment, gets filter cake;
Step 8) distilled water is by filter cake furnishing pulpous state (liquid-solid ratio is 1: 1 ~ 1: 2);
Slurry is placed in the withstand voltage reactor of inner liner polytetrafluoroethylene by step 9), at 100 DEG C ~ 120 DEG C temperature, react 2h ~ 8h;
Step 10) carries out suction filtration to reacted product, is placed by filter cake in evaporating dish and dries at 100 DEG C.
Embodiment one:
1, in there-necked flask, add 24 grams of clean water sludge dried, 18 grams of sodium metasilicate, the sodium hydroxide solution of 200 milliliters 2 moles, under ultrasonication, maintain the temperature between 80 ~ 100 DEG C, react 0.5 hour;
2, thing in there-necked flask is carried out centrifugation, get its supernatant, under mechanical stirring, adjust the pH value to 8 of supernatant with the concentrated sulfuric acid after, carry out suction filtration, get its filter cake;
3, in filter cake, add 10 ml distilled waters, enter the autoclave of inner liner polytetrafluoroethylene, 105 DEG C of reactions after 3 hours, suction filtration is got its filter cake and is put into evaporating dish, enters baking oven 100 DEG C of oven dry.The product of oven dry is pulverized, obtains product.
4, above-mentioned obtained adsorbent product is mixed with certain proportion with certain density ammonia nitrogen solution, certain hour is left standstill again on the oscillator after vibration 2h, supernatant is got in centrifugation, surveys ammonia nitrogen concentration in supernatant with ultraviolet specrophotometer, calculates ammonia nitrogen removal frank;
5, mixed with certain proportion with certain density ammonia nitrogen solution by commodity zeolite, leave standstill certain hour again after the 2h that vibrates on the oscillator, supernatant is got in centrifugation, surveys ammonia nitrogen concentration in supernatant with ultraviolet specrophotometer, calculates ammonia nitrogen removal frank;
6, compare this modification clean water sludge adsorbent and commodity zeolite to the adsorption effect of Ammonia In Aqueous Solution nitrogen, this product, close to the adsorption effect of 40 ~ 60 order zeolites, is better than the adsorption effect of 20 ~ 40 order zeolites.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a preparation method for modification clean water sludge ammonia nitrogen adsorbent, comprises the following steps:
Step 1) by dehydration, dry after clean water sludge carry out pulverizing, being screened into mud granule;
Step 2) 2mol/L sulfuric acid is added in mud granule, under ul-trasonic irradiation, react 30min ~ 60min;
Step 3) will react products therefrom stratification, get its sludge settling, be referred to as to reclaim mud and dry for standby;
Step 4) in recovery mud, add sodium metasilicate and control silica alumina ratio in 6: 1 ~ 20: 1 scope, sodium hydrate aqueous solution is 1.5mol/L ~ 2.5mol/L, under ultrasonication, control temperature reacts 30min ~ 50min at 80 DEG C ~ 100 DEG C;
Step 5), by product centrifugation, gets its supernatant;
Step 6), under mechanical agitation, regulates supernatant pH value to 6 ~ 8 with the concentrated sulfuric acid;
Step 7) carries out suction filtration to the product after pH adjustment, gets filter cake;
Step 8) distilled water is by filter cake furnishing pulpous state, and liquid-solid ratio is 1: 1 ~ 1: 2;
Slurry is placed in the withstand voltage reactor of inner liner polytetrafluoroethylene by step 9), at 100 DEG C ~ 120 DEG C temperature, react 2h ~ 8h;
Step 10) carries out suction filtration to reacted product, is placed by filter cake in evaporating dish and dries at 100 DEG C.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103721685B (en) * | 2013-12-20 | 2015-12-09 | 大连赛姆生物工程技术有限公司 | A kind of zeolite purifying agent of fast purification marine culture water |
| CN103992371B (en) * | 2014-05-29 | 2017-04-12 | 哈尔滨工业大学 | Method for circularly extracting protein and humus from residual sludge after dehydration by combining ultrasonic method with acid process |
| CN105032203B (en) * | 2015-07-28 | 2017-06-16 | 苏州科技学院 | The preparation method of the membrane adsorbent of ammonia nitrogen in a kind of removal waste water |
| CN106000284A (en) * | 2015-11-12 | 2016-10-12 | 中国环境科学研究院 | Nitrogen controlling material prepared based on lake sediment, preparation method and application thereof |
| CN112844303A (en) * | 2021-02-02 | 2021-05-28 | 苏州科技大学 | Water purification sludge/sodium silicate composite adsorbent, preparation method thereof and application thereof in treating ammonia nitrogen in water body |
| CN115155545A (en) * | 2022-06-24 | 2022-10-11 | 中国水产科学研究院珠江水产研究所 | Porous material for reducing ammonia nitrogen in pond culture tail water and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982432A (en) * | 2010-10-27 | 2011-03-02 | 苏州科技学院 | Method for repairing city water body by renewable pure water sludge |
| CN102553515A (en) * | 2012-01-19 | 2012-07-11 | 苏州科技学院 | Method for preparing dephosphorus adsorbent by using water purification sludge as raw material |
| CN102886247A (en) * | 2012-09-29 | 2013-01-23 | 广西大学 | Method for preparing adsorbent by virtue of red mud in alumina industry and sludge in sewage treatment |
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| JPS5644038A (en) * | 1979-09-14 | 1981-04-23 | Risui Kagaku Kk | Adsorbent |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982432A (en) * | 2010-10-27 | 2011-03-02 | 苏州科技学院 | Method for repairing city water body by renewable pure water sludge |
| CN102553515A (en) * | 2012-01-19 | 2012-07-11 | 苏州科技学院 | Method for preparing dephosphorus adsorbent by using water purification sludge as raw material |
| CN102886247A (en) * | 2012-09-29 | 2013-01-23 | 广西大学 | Method for preparing adsorbent by virtue of red mud in alumina industry and sludge in sewage treatment |
Non-Patent Citations (2)
| Title |
|---|
| Zeolite synthesis from paper sludge ash at low temperature (90 ℃) with addition of diatomite;Takaaki Wajima et al.;《Journal of Hazardous Materials》;20051104;第B132卷;第244-252页 * |
| 剩余污泥制备活性炭吸附剂及其应用研究;余兰兰 等;《安全与环境学报》;20050831;第5卷(第4期);第39-42页 * |
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