Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method
The invention discloses a farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method, and relates to the technical field of saline-alkali soil improvement and restoration transformation. The method includes the steps that (1) soil is ploughed, and the ploughing depth ranges from 30 cm to 50 cm; (2) building waste residues, inferior rock, cement and coal ash are mixed, solidified, pressed, and formed, and then applied the to the bottommost layer of the ploughed soil as a blocking layer; (3) coal gangue particles are applied on the blockinglayer to serve as a filtering layer; (4) gravel is applied on the filtering layer to serve as a buffering layer; (5) the ploughed soil is applied to the uppermost layer; and (6) water sprayed on theploughed soil. According to the farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method, S element in the coal gangue is oxidized into acid to be subjected to acid-base neutralization reaction with salt and alkali in the soil, downward migration of the salt is promoted through the adsorption effect of the gravel and the coal gangue, so that the desalination rate is increased, and therefore the saline-alkali soil is remediated.
本发明公开了一种农田盐碱土地水位上升阻断下渗综合过滤改造方法，涉及盐碱土壤改良修复改造技术领域。包括以下步骤：(1)将土壤翻耕，翻耕深度为30～50cm；(2)将建筑废渣、劣质岩石、水泥和粉煤灰混合固化压制成型后施于翻耕后的土壤最底层作为阻断层；(3)将煤矸石颗粒施于阻断层之上作为过滤层；(4)将砂砾施于过滤层之上作为缓冲层；(5)将翻耕土壤施于最上层；(6)在翻耕土壤上喷淋水。本发明通过煤矸石中S元素氧化成酸与土壤中盐碱发生酸碱中和反应、砂砾和煤矸石的吸附作用，促进盐分向下迁移，提高脱盐速率，从而对盐碱土壤进行修复。
Farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method
The invention discloses a farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method, and relates to the technical field of saline-alkali soil improvement and restoration transformation. The method includes the steps that (1) soil is ploughed, and the ploughing depth ranges from 30 cm to 50 cm; (2) building waste residues, inferior rock, cement and coal ash are mixed, solidified, pressed, and formed, and then applied the to the bottommost layer of the ploughed soil as a blocking layer; (3) coal gangue particles are applied on the blockinglayer to serve as a filtering layer; (4) gravel is applied on the filtering layer to serve as a buffering layer; (5) the ploughed soil is applied to the uppermost layer; and (6) water sprayed on theploughed soil. According to the farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method, S element in the coal gangue is oxidized into acid to be subjected to acid-base neutralization reaction with salt and alkali in the soil, downward migration of the salt is promoted through the adsorption effect of the gravel and the coal gangue, so that the desalination rate is increased, and therefore the saline-alkali soil is remediated.
本发明公开了一种农田盐碱土地水位上升阻断下渗综合过滤改造方法，涉及盐碱土壤改良修复改造技术领域。包括以下步骤：(1)将土壤翻耕，翻耕深度为30～50cm；(2)将建筑废渣、劣质岩石、水泥和粉煤灰混合固化压制成型后施于翻耕后的土壤最底层作为阻断层；(3)将煤矸石颗粒施于阻断层之上作为过滤层；(4)将砂砾施于过滤层之上作为缓冲层；(5)将翻耕土壤施于最上层；(6)在翻耕土壤上喷淋水。本发明通过煤矸石中S元素氧化成酸与土壤中盐碱发生酸碱中和反应、砂砾和煤矸石的吸附作用，促进盐分向下迁移，提高脱盐速率，从而对盐碱土壤进行修复。
Farmland saline-alkali land water level rising blocking infiltration comprehensive filtering transformation method
农田盐碱土地水位上升阻断下渗综合过滤改造方法
LIANG ZHENG (Autor:in) / BAO ZONGYI (Autor:in)
01.12.2020
Patent
Elektronische Ressource
Chinesisch
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