CN104437407A - 一种土壤重金属吸附剂 - Google Patents
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- 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
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- 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
- B01J20/18—Synthetic zeolitic molecular sieves
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B09C1/00—Reclamation of contaminated soil
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- B01J2220/00—Aspects relating to sorbent materials
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Abstract
本发明公开一种土壤重金属吸附剂，按重量份计其组分为：柠檬酸25～35份，生物炭15～25份，木质素15～25份，甲壳质5～15份，沸石5～15份，天冬氨酸5～15份。采用柠檬酸和天冬氨酸等原料，配方合理，彻底强力吸附土壤中的重金属元素，使土壤变得疏松结固，同时增加土壤的营养元素；本吸附剂使用方法简单，适用范围广，且成本低，特别适合吸附土壤中重金属之用。
Description
技术领域
本发明涉及土壤改良剂技术领域，具体涉及一种土壤重金属吸附剂。
背景技术
随着我国电镀、电子工业、冶金工业灯工业的发展，以及农作物肥料大量使用，土壤重金属的污染问题十分突出。土壤重金属特别是镉含量的增加会使土壤中细菌、固氮菌的数量明显减少，会破坏植物体中的叶绿素，减少根系对水分和养分的吸收，抑制根系对氮的固定和硝酸还原酶活性。镉通过食物链进入人体后，与人体内的特定蛋白质及各种酶发生强烈反应使它们失去活性，并在人体某些器官中积蓄起来造成慢性中毒，同时还干扰铜、钴、锌在体内的正常代谢，诱发各种疾病，甚至死亡。
目前，土壤的重金属污染治理主要有：客土法，该方法只适用于污染面积不大的土壤，成本高、操作复杂；翻耕法，该方法具有一定的局限性，不适合耕层下面的污染物浓度高或者土层浅薄的情况；农业生态修复措施，该方法修复时间比较长、效果也不理想；此外，这些方法工艺程序相对比较复杂。
发明内容
针对现有技术的不足，本发明的目的是提供一种适用范围广、成本低、效果显著的土壤重金属吸附剂。
为了达到上述目的，本发明采取的技术方案是：
一种土壤重金属吸附剂，按重量份计其组分为：柠檬酸25～35份，生物炭15～25份，木质素15～25份，甲壳质5～15份，沸石5～15份，天冬氨酸5～15份。
作为优选成分，金属吸附剂按重量份计其组分为：柠檬酸27～33份，生物炭17～23份，木质素17～23份，甲壳质7～13份，沸石7～13份，天冬氨酸7～13份。
作为优选成分，金属吸附剂按重量份计其组分为：柠檬酸29～31份，生物炭19～21份，木质素19～21份，甲壳质9～11份，沸石9～11份，天冬氨酸9～11份。
作为较佳成分，金属吸附剂按重量份计其组分为：柠檬酸30份，生物炭20份，木质素20份，甲壳质10份，沸石10份，天冬氨酸10份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用200～300kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
与现有技术相比，本发明具有的有益效果：采用柠檬酸和天冬氨酸等原料，配方合理，彻底强力吸附土壤中的重金属元素，使土壤变得疏松结固，同时增加土壤的营养元素；本吸附剂使用方法简单，适用范围广，且成本低。
具体实施方式
下面结合具体实施例对本发明作进一步地说明。
实施例1
按重量份称取各组分为：柠檬酸35份，生物炭25份，木质素25份，甲壳质5份，沸石5份，天冬氨酸5份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用200kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
实施例2
按重量份称取各组分为：柠檬酸33份，生物炭23份，木质素23份，甲壳质7份，沸石7份，天冬氨酸7份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用230kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
实施例3
按重量份称取各组分为：柠檬酸30份，生物炭20份，木质素20份，甲壳质10份，沸石10份，天冬氨酸10份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用250kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
实施例4
按重量份称取各组分为：柠檬酸27份，生物炭17份，木质素17份，甲壳质13份，沸石13份，天冬氨酸13份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用280kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
实施例5
按重量份称取各组分为：柠檬酸25份，生物炭15份，木质素15份，甲壳质15份，沸石15份，天冬氨酸15份。
制备吸附剂，将上述原材料按比例混合均匀，充分搅拌后，置放于10℃以上的车间发酵20天后包装即可。
使用吸附剂，每亩施用300kg吸附剂，吸附剂与土壤充分混合后静置5天，这期间土壤的水不进也不出。
应当指出，以上案例仅是本发明有代表性的例子。显然，本发明的技术方案并不限于上述实施例，还可以有许多变性。
Claims (4)
1.一种土壤重金属吸附剂，其特征在于，按重量份计其组分为：柠檬酸25～35份，生物炭15～25份，木质素15～25份，甲壳质5～15份，沸石5～15份，天冬氨酸5～15份。
2.根据权利要求1所述一种土壤重金属吸附剂，其特征在于，按重量份计其组分为：柠檬酸27～33份，生物炭17～23份，木质素17～23份，甲壳质7～13份，沸石7～13份，天冬氨酸7～13份。
3.根据权利要求2所述一种土壤重金属吸附剂，其特征在于，按重量份计其组分为：柠檬酸29～31份，生物炭19～21份，木质素19～21份，甲壳质9～11份，沸石9～11份，天冬氨酸9～11份。
4.根据权利要求3所述一种土壤重金属吸附剂，其特征在于，按重量份计其组分为：柠檬酸30份，生物炭20份，木质素20份，甲壳质10份，沸石10份，天冬氨酸10份。
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Cited By (5)
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| CN105567248A (zh) * | 2016-02-04 | 2016-05-11 | 周益辉 | 一种土壤重金属钝化剂及其制备方法与应用 |
| CN105713616A (zh) * | 2016-02-04 | 2016-06-29 | 周益辉 | 一种镉污染土壤修复剂及其使用方法和应用 |
| CN106040188A (zh) * | 2016-06-16 | 2016-10-26 | 马鞍山市顺达环保设备有限公司 | 一种质量稳定性高的吸附剂 |
| CN107641514A (zh) * | 2016-07-21 | 2018-01-30 | 天津市绿通环保工程设备开发有限公司 | 土壤重金属吸附剂 |
| CN108311118A (zh) * | 2018-02-10 | 2018-07-24 | 吴刚 | 一种改性合成沸石重金属离子吸附材料的制备方法 |
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| CN105567248A (zh) * | 2016-02-04 | 2016-05-11 | 周益辉 | 一种土壤重金属钝化剂及其制备方法与应用 |
| CN105713616A (zh) * | 2016-02-04 | 2016-06-29 | 周益辉 | 一种镉污染土壤修复剂及其使用方法和应用 |
| CN106040188A (zh) * | 2016-06-16 | 2016-10-26 | 马鞍山市顺达环保设备有限公司 | 一种质量稳定性高的吸附剂 |
| CN107641514A (zh) * | 2016-07-21 | 2018-01-30 | 天津市绿通环保工程设备开发有限公司 | 土壤重金属吸附剂 |
| CN108311118A (zh) * | 2018-02-10 | 2018-07-24 | 吴刚 | 一种改性合成沸石重金属离子吸附材料的制备方法 |
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