Contaminated groundwater remediation and treatment method

Abstract

The invention discloses a contaminated groundwater remediation and treatment method which comprises the following steps: retaining a to-be-remediated water source in a groundwater site by using a water retaining apparatus, so that the water source cannot be supplied to the groundwater, and a movement of pollutants is blocked; performing sampling detection on to-be-remediated groundwater in the groundwater site, and determining types and concentrations of the pollutants in the groundwater; selecting bioremediation agent raw materials, adding the raw materials into a bioreactor to perform stirring and sterilizing, inoculating strains, and performing fermentation to obtain a bioremediation agent; extracting the groundwater into the bioreactor to perform degradation, recharging the degraded groundwater into soil, enabling the groundwater to be mixed with bacteria and oxygen in the recharging process, and circulating. According to the previous manner, the contaminated groundwater remediation and treatment method disclosed by the invention is low in input cost, the groundwater can be treated on the spot at less repair cost only, the method is simple and convenient in application and lessin ambient environment interference, the pollutants can be degraded and removed on the spot, an excellent remediation effect is achieved in a short time, and no secondary pollution is produced.

Description

technical field [0001] The invention relates to the technical field of groundwater treatment, in particular to a method for restoring and treating polluted groundwater. Background technique [0002] Groundwater refers to the water that exists in the rock voids below the ground. In a narrow sense, it refers to the water in the saturated aquifer below the groundwater surface. Groundwater is an important part of water resources. Due to its stable water quantity and good water quality, it is one of the important water sources for agricultural irrigation, industrial mining and cities. Certain human factors can cause deterioration of groundwater quality, such as direct discharge of industrial wastewater into the ground, intrusion of polluted surface water into underground aquifers, infiltration of human and animal feces or contaminated water due to excessive use of pesticides, etc. The result of pollution is to increase the content of harmful components in groundwater such as phe...

AI Technical Summary

Problems solved by technology

Many of the existing groundwater remediation methods use the traditional pumping method, which requires a lot of equipment, high treatment costs, and complicated operations.