5 results about "Environmental destruction" patented technology

This invention discloses a modifier for red bed soft rock, its preparation, and its application in improved construction, belonging to the field of road engineering technology. The modifier comprises the following components by weight: 60-100 parts slag, 10-30 parts fly ash, and 1-10 parts alkali activator. This invention targets the characteristics of red bed soft rock, designing a modifier that significantly improves the strength and water stability of the modified red bed soft rock, meeting the requirements of highway subgrade for bearing capacity and deformation resistance. The bonding reaction between the modifier and the red bed soft rock is an irreversible process, maintaining subgrade strength and water stability for a long time and reducing later maintenance costs. The invention also introduces a phase change temperature-controlled curing film method to reduce the impact of temperature fluctuations on the road surface and subgrade, while allowing for self-regulation of humidity and reuse. This invention solves problems such as high treatment costs, significant environmental damage, limited improvement effects, uneven reinforcement, rapid water evaporation during watering curing, uneven curing, and large temperature fluctuations associated with red bed soft soil treatment.

The invention relates to the technical field of soil remediation, in particular to a soil remediation agent for petroleum-contaminated soil and a preparation method of the soil remediation agent, and aims to solve the problem that existing petroleum-contaminated soil is difficult to naturally remedy. According to the preparation method, the polluted soil is repaired by utilizing a bioremediation method, the advantages of high efficiency, good effect and small environmental damage are achieved by adding florae into the polluted soil to remove petroleum hydrocarbon pollutants, the candida tropicalis and the streptococcus faecalis are adopted for composite treatment, the candida tropicalis has the advantages of high permeability resistance, acid resistance and high metabolism efficiency of fungi, and the streptococcus faecalis and the candida tropicalis have the advantages of being high in metabolism efficiency. Streptococcus faecalis can be degraded by the petroleum hydrocarbon, pseudomycelium and spores can be generated, an extended network structure is formed in soil and can be used as a channel for bacterial migration, bacterial migration is facilitated, the treatment effect on pollutants is improved, streptococcus faecalis can grow in the environment with the petroleum hydrocarbon, the degradation effect on the petroleum hydrocarbon is good, and the degradation effect on the petroleum hydrocarbon is good. By compounding the two components, a good biodegradation effect can be achieved.

The application relates to the technical field of water source pollution investigation, and particularly discloses a soil and groundwater pollution fine investigation method, which comprises the following steps: S1, investigating pollution sources, S2, sampling design, S3, laboratory analysis, S4, ecological risk assessment, S5, repair suggestion and S6, dynamic monitoring; through machine learning and big data analysis, the application can effectively integrate historical pollution data, field sampling data and spatial geographic information, form an accurate pollution source distribution map, which not only helps to identify pollution hot spot areas, but also can predict the pollution diffusion trend through a data-driven model, provide dynamic prediction of future pollution evolution, realize high-precision positioning of complex pollution areas, reduce blind sampling and invalid investigation, improve resource utilization efficiency, can predict the area where the pollutants may diffuse in the future, take preventive measures in advance, and avoid further environmental damage.

The invention discloses a management method for underground water resources and foundation pit dewatering and drainage in engineering construction. The management method comprises the five aspects of early-stage investigation and analysis, centralized collection, foundation pit dewatering treatment, rainwater back-supplementing and dynamic adjustment and monitoring and optimization. An adaptive scheme is formulated in the earlier stage of a project through detection of a professional instrument and combination of a mathematical model; centralized collection of water resources and foundation pit dewatering treatment are achieved in construction; the drainage and collection work of foundation pit dewatering is arranged as a whole according to the engineering construction progress, and the water resources are dynamically allocated and collected through a specially-built reservoir to meet the scene requirements of a concrete mixing plant, backfill water adding, environmental protection and dust suppression, greening irrigation and the like. And the management is continuously optimized through real-time monitoring. According to the method, scientific planning and efficient utilization of foundation pit dewatering and drainage water resources are achieved, diversified water demands of engineering construction are accurately matched, resource waste and environment damage are effectively avoided, the construction water cost is remarkably reduced, safe engineering promotion is guaranteed, and economic and environmental benefits are both achieved.

The application discloses a sensor and a monitoring method for detecting mountain torrents and debris flow erosion, and relates to the technical field of hydrological monitoring and mountain torrent disaster early warning. The sensor comprises a monitoring assembly, the monitoring assembly comprises a plurality of erodible units, the erodible units are arranged in layers from top to bottom along the direction perpendicular to the bottom surface of the monitoring channel, the tail of each erodible unit is connected with a flexible wire, all the flexible wires are integrated and electrically connected with a single-chip microcomputer, the single-chip microcomputer is in communication connection with a data processing system, a displacement sensor is arranged in each erodible unit and used for detecting the displacement of the erodible unit, when the displacement reaches a preset threshold value, a trigger signal is transmitted to the single-chip microcomputer. The application can realize real-time continuous monitoring of the erosion process and is sensitive to triggering. The layered arrangement has high spatial resolution, accurate depth measurement, in-situ measurement and small environmental damage. The sensor can be disassembled, maintained and reused, and the cost is greatly reduced.