Modeling method of heavy metal pollutants screening model based on river ecosystem
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A technology of river ecosystem and modeling method, which is applied in the modeling field of heavy metal optimal control pollutant screening model, which can solve the problem of less heavy metal research.
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A technology of river ecosystem and modeling method, which is applied in the modeling field of heavy metal optimal control pollutant screening model, which can solve the problem of less heavy metal research.
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] Such as Figure 1~3 As shown, the present embodiment describes in detail the method of the present invention:
[0038] 1 Migration and transformation of heavy metals in river three-phase space
[0039] After heavy metals are released into the environment, they are easy to pass and accumulate through the food chain (Li et al., 2007; Lü et al., 2008), so heavy metals entering the water body can eventually enter the human body through the consumption of fish and other aquatic products (Jia, 2005) , while producing toxic effects on fish (Zhang et al., 2006), it also poses a serious threat to human health. In addition, heavy metals in water bodies are easy to form complexes or chelates with organic polymers, adsorbed on the surface of clay minerals, etc., enter and accumulate in sediments, and the sediments that adsorb heavy metals go through a series of physical, chemical and biological processes. Heavy metals are re-released, causing secondary pollution of the water envi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a modeling method of a heavy metal optimal control pollutant screening model based on a river ecosystem, and relates to the technical field of evaluation of risks of the river ecosystem. The modeling method of the heavy metal optimal control pollutant screening model based on the river ecosystem aims to screen one or more heavy metal optimal control pollutants to represent the heavy metal pollution status of a river. The method includes the steps that toxic coefficients, pollution indexes and the detection ratio of heavy metal are selected to calculate aqueous phase ecological risk indexes, biological phase ecological risk indexes and solid phase ecological risk indexes respectively, the heavy metal optimal control pollutant screening model is built, and heavy metal with high comprehensive ecological risk indexes is screened as the heavy metal optimal control pollutants of the river in a research region. The built model is applied to evaluation of the combined effect of five toxic heavy metal pollutants of the Songhua River, and the research conclusion is matched with correlational research results of other scholars about the Songhua River. The model is used for screening the heavy metal optimal control pollutants based on the river ecosystem.
Description
technical field [0001] The invention relates to a modeling method for a screening model of heavy metal priority pollutants, and relates to the technical field of river ecosystem risk assessment. Background technique [0002] With the continuous expansion of industrial production scale and the rapid development of urbanization, a large amount of heavy metals entering the environment have an impact on biological individuals and populations, which in turn have adverse ecological effects on the ecosystem. If the heavy metal exceeds the tolerance limit of the human body, it will cause acute or chronic poisoning of the human body, leading to carcinogenic, teratogenic and mutagenic phenomena, which will cause great harm to the human body (Wang & Zhang, 2012). Heavy metal pollution has now become an important content of water environmental pollution assessment (Liu et al., 2006), and has been highly concerned by scholars at home and abroad. Evaluation, such as sediments (Burton, 20...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More