Device and method for remedying heavy-metal-polluted soil with microorganism

US11207719B2 · kind B2 · utility

Assignee

• Northeast Agricultural University · CN

Inventors

• Zimin Wei · Jingwei, CN
• Xu Zhang · Shandong, CN
• Beidou Xi · Beijing, CN
• Xinyu Zhao · Dongguan, CN
• Yuanfeng Li · Drexel Hill, US
• Liming Jia · Jingwei, CN
• Tiejun Wen · Jingwei, CN
• Mingxiao Li · Beijing, CN
• Tianxue Yang · Beijing, CN

Key dates

• Filing date: Feb 13, 2018
• Grant date: Dec 28, 2021
• Expiry date: Apr 13, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B09C2101/00
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a device and method for remedying a heavy-metal-polluted soil with a microorganism, and relates to a device for remedying a metal-polluted soil and a remediation method thereof. The present disclosure solves the problem that a remediation microorganism cannot be extracted from the soil. The device comprises a main plate and a plurality of microorganism-extracting chambers, wherein the main plate is connected to the microorganism-extracting chambers; the microorganism-extracting chamber are filled with a filler; a tail end of the microorganism-extracting chambers is spiky, and openings are separately provided on a side wall of the microorganism-extracting chambers. The method comprises: I, adding a nutrient medium to the soil, and then inoculating a remediation microorganism; and II, inserting the above device into the soil for 6˜8 days, and then taking it out. The method can remedy heavy-metal-polluted soil in a short time with a high removal rate of the heavy metal.