System for improving saline-alkali soil by using industrial carbon dioxide and method for reducing carbon and increasing yield by using system

• Main Authors: HAN PIN, SHAN FURONG, WANG XIAOJUAN, ZHAO ZHONGHUA, SONG XIAOLING, BAO FANGJUN, HUANG DONG, LI XUEKUAN, WANG SHENGYI, LI GAOHUA, LIU XIAOWU, YANG JIAKANG
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES ORIMPLEMENTS, IN GENERAL; SOIL WORKING IN AGRICULTURE OR FORESTRY; TRAPPING; WATERING

A system for improving saline-alkali soil through industrial carbon dioxide comprises an industrial waste gas treatment system, a liquid carbon dioxide storage device, a carbon dioxide water dissolving device, a drip irrigation system and a salt discharging device. The method for reducing carbon and increasing yield by using the system comprises the following steps: 1) preparing industrial carbon dioxide with the purity of not less than 95% by using the industrial waste gas treatment system; 2) dissolving industrial carbon dioxide gas in water by using a gas water dissolving device to form an acidic aqueous solution; (3) applying the acidic aqueous solution into crop root layer soil by using a drip irrigation system to neutralize alkali metal ions in the soil so as to form bicarbonate easy to flow; and 4) discharging the eluent containing the bicarbonate out of the soil by using a salt discharging device. 一种工业二氧化碳改良盐碱地系统包括：工业废气处理系统、液态二氧化碳储存装置、二氧化碳溶水装置、滴灌系统和排盐装置。使用该系统降碳增产方法是：1)利用工业废气处理系统制备工业二氧化碳，纯度不低于95％；2)利用气