Closed-Loop Contaminated Soil Treatment With Adaptive Reactor Control

The patent applies parameter changes by transitioning from high-temperature thermal desorption to low-temperature mechanochemical treatment. The ball mill reactor operates at ambient or near-ambient temperatures, fundamentally changing the temperature parameter of the treatment process. This enables effective contaminant degradation without the excessive energy consumption associated with heating soil to high temperatures, directly resolving the technical contradiction between degradation effectiveness and energy efficiency.

The patent replaces the thermal field (heat-based treatment) with a mechanical field (ball mill grinding). Instead of using thermal energy to volatilize and degrade contaminants, the system uses mechanical energy from rotating ball bearings to physically break down soil particles and contaminants through grinding and impact forces. This mechanical substitution eliminates the need for high energy input while maintaining effective contaminant degradation.

The patent implements dynamics by making treatment parameters adaptive rather than static. The system continuously monitors contamination levels in real-time and dynamically adjusts operational parameters such as ball mill rotation speed, treatment duration, and chemical additive dosing. This dynamic adjustment enables each soil batch to receive precisely the treatment it needs, maximizing efficiency while avoiding over-treatment, and directly addresses the contradiction between productivity and process complexity.

The patent applies feedback by implementing a closed-loop control system where treatment parameters are continuously adjusted based on real-time monitoring of contamination levels. Sensors measure contaminant concentrations during treatment, and this feedback information is used to modify operational parameters on-the-fly. This ensures optimal treatment efficiency for each batch while maintaining manageable process complexity through automated control.

The patent applies parameter changes by optimizing chemical additive dosing based on real-time contamination measurements. Instead of using fixed high dosages, the system adjusts chemical additive concentrations dynamically to match the actual contamination level of each soil batch. This ensures sufficient contaminant degradation while minimizing chemical consumption and waste, directly resolving the contradiction between degradation effectiveness and resource efficiency.

The patent applies partial action by using only the necessary amount of chemical additives required for each specific contamination case. Rather than applying excessive dosages uniformly to all soil batches, the system determines the precise additive quantity needed based on measured contamination levels, achieving complete degradation where necessary while avoiding unnecessary chemical use and waste in lower-contamination batches.