Research on quantification method of water pollution ecological environment losses

Abstract

Economic and social development have worsened the situation of water pollution and even the ecological environment. It is helpful to quantify the water pollution ecological environment losses for decision-makers to formulate reasonable pollution control plans. However, the current quantitative analyses led by economic methods are not comprehensive and systematic. Therefore, based on the emergy theory and method system of eco-economics, this study analyzed the internal energy flow process of the water-polluted ecosystem, discussed the composition of water-polluted ecological environment loss, and proposed a quantitative model of water-polluted ecological environment loss based on the emergy analysis method. It can reasonably quantify the ecological environment loss caused by water pollution and provide a reference for optimizing regional industrial layout, scientifically formulating pollution control planning, and promoting the sustainable development of the ecosystem. Taking Kaifeng City in Henan Province as an example, the rationality of the model is verified. The results show that the annual average total energy value of water pollution ecological environment loss in Kaifeng City is 3.83 × 1020sej, equivalent to 145 million yuan (0.76) of Kaifeng's GDP in 2018.

Atividade fotocatalítica e antimicrobiana de filmes de TiO>sub<2>/sub<: alternativa sustentável para autolimpeza de superfícies

“…É urgente a adoção de estratégias e medidas que promovam a remoção eficaz desses poluentes das águas residuais, antes de sua descarga no meio ambiente, a fim de evitar mais contaminação (JONES; LESTER; VOULVOULIS, 2005). A água é um recurso estratégico, e ela desempenha um papel vital na promoção do desenvolvimento econômico e social de uma nação (LV et al, 2022;DONG, 2021). MACHADO et al, 2012;NOGUEIRA;JARDIM, 1998).…”