Ocean warming is causing shifts in environmental and climatic patterns worldwide.This change is inevitable and poses threats to an increase infectious diseases in the near future.A study of the correlation of various infectious diseases with Environmental and Climatic Determinants (ECDs) is essential for overcoming these challenges.This research relates to the study and analysis of the spatio-temporal correlation of ECDs with the most affected infectious diseases in Tamil Nadu (TN) and West Bengal (WB) states in India.Ten different ECDs were derived and extracted from Earth Observation (EO) data using the geospatial tools and correlated with infectious diseases that occurred in TN and WB using RStudio.In the analysis, geographical variations were revealed in the association of ECDs with infectious diseases from one location to another.Dengue is found to be correlated with 3 ECDs in TN, such as the Normalized Difference Vegetation Index, Normalized Difference Water Index, and Enhanced Vegetation Index, but in WB, it correlates with 4 different ECDs, including Land Surface Temperature, Precipitation, Enhanced Vegetation Index, and Surface Pressure.Similarly, the association of ECDs with other infectious diseases in TN and WB were analyzed.By using associated ECDs as predictors and strongly associated ECDs as key risk factors, researchers can develop prediction models for specific infectious diseases.Furthermore, the estabilishment of an ECD monitoring system could offer early warnings for infectious diseases.

This study examines the efficiency of various aquatic plants in ecological floating beds for the remediation of municipal wastewater treatment plant tailwater under winter conditions.Twelve aquatic species were selected for investigation, with a focus on their individual and combined abilities to improve tailwater quality.Notable increases in biomass were observed in eight species, namely Acorus calamus, Alisma orientalis, Water celery, Reed, Umbrella grass, Scirpus validus, Iris, and Thalia Dealbata, while Canna indica, Pontederia cordata, Loosestrife, and Cattail demonstrated lesser growth.Tailwater pH levels treated with these plants showed a decreasing trend initially, followed by an increase, yet remained lower compared to the untreated control.Significant reductions were recorded in nitrogen, phosphorus, and Chemical Oxygen Demand (COD) levels.Specifically, Scirpus validus exhibited the highest removal rates for Total Nitrogen (TN) and Ammonium Nitrogen (NH4 + -N) at 70.3% and 80.6% respectively, Canna indica was most effective in Total Phosphorus (TP) removal with a 73.8% rate, and Thalia Dealbata achieved the highest COD reduction at 36.3%.The study identifies Scirpus validus, Thalia dealbata, Canna indica, and Iris as particularly suitable for winter application in municipal wastewater treatment.Furthermore, a synergistic effect was observed in mixed plantings, especially combinations of Iris with Scirpus validus or Thalia dealbata, leading to enhanced biomass and more efficient pollutant removal.This mixed planting strategy compensates for the varying pollutant removal efficiencies of individual species, thereby optimizing the remediation process.The findings underscore the potential of using a diverse array of aquatic plants in ecological floating beds to enhance the quality of wastewater tailwater, particularly under winter temperature conditions.

Ecotourism is an important direction for the development of new tourism as it emphasizes environmental protection and rational use of ecological resources.This model has played a positive and powerful role in promoting the development of regions with rich ecological resources and lagging economic development.Taking Jiangsu Province as an example, this article has evaluated its overall potential in ecotourism development.With a reference to relevant literature and previous research methods, expert scoring method and analytic hierarchy process were adopted to construct the ecotourism evaluation index system, and calculate the weight of each factor index.On this basis, the weighted average method was employed to build an evaluation model to assess the overall ecotourism development potential of Jiangsu Province.The results showed that: 1. Jiangsu Province enjoys superior geographical location and rich natural and human ecotourism resources, so it has high tourism development value, but at the same time, special attention shall be paid to the ecological vulnerability of its northern region.2. For ecotourism development in specific areas, special consideration should be given to the ecological vulnerability of the northern region.The model and research ideas constructed in this paper have practical significance for more specific research and evaluation in guiding the development of regional ecotourism resources.

Soil washing has been widely applied and studied in the remediation of heavy metal contamination soil.However, it proves easily limited by soil texture.To this end, the method of freeze-thaw and washing is used to enhance washing efficiency of clayey soils.An array of experiments of laboratory indirectness washing and freeze-thaw and washing were carried out to investigate the removal effect of single and compound washing on heavy metals.The results showed that the stability of soil aggregates would be destabilized by repeated freezing and thawing, contributing to a sufficient contact reaction between eluents and contaminations.The process can also remove heavy metals under a lower liquid-solid ratio, thus reducing the risk of secondary contamination of the soil environment.The eluent has a certain viscosity, which increases the viscosity of the pore water.Accordingly, the water migration resistance increases and inhibits the soil frost heaving-water intake, resulting in the reduction of removal efficiency.The removal effect of compound washing is preferable to the single washing, proving effectively removing the weak acid extractable fractions, reducible fractions, as well as residue fractions of Cd and the weak acid extractable fractions and reducible fractions of Pb in the soil.The research results provide a novel method of reusing natural cold energy to remedy clayey soil contamination with heavy metals.

The excessive amount of biowaste in landfills has resulted in significant environmental contamination problems.To achieve environmental sustainability and protection of our ecosystem, this study aims to evaluate the adsorption performance of saltwater clamshell (SWCS) and zeolite in reducing the water pollutants expressed as Total Nitrogen (TN), Total Phosphorus (TP), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD) and total suspended solids (TSS) from river water.The collected natural river water sample was first circulated through the adsorbents in a fabricated model for five consecutive days and each of the water parameters was then tested every day according to APHA standards.The result showed that SWCS had a higher adsorption capacity than zeolite.The adsorption capacity of the SWCS for TSS, TP, TN, COD, and BOD was 6.967 mg/g, 0.310 mg/g, 1.357 mg/g, 3.5 mg/g, and 1.667 mg/g respectively.Whilst zeolite had capacities of 2.51 mg/g, 0.032 mg/g, 0.6377 mg/g, 0.7 mg/g, and 0.4 mg/g respectively.Based on the isotherm analysis, BOD(Zeolite), TSS(Zeolite), COD(Zeolite), TN(Zeolite), BOD(SWCS), TP(SWCS), and TSS(SWCS) showed higher regression (R 2 > 0.95) in Langmuir isotherm, while TP(Zeolite), TN(SWCS), and COD(SWCS) had higher regression (R 2 > 0.88) in Freundlich isotherm.Additionally, BOD (Zeolite), TP (Zeolite), TSS (Zeolite), and TN(SWCS) demonstrated a higher correlation with the Pseudo-First-Order model.On the other hand, COD(Zeolite), TN(Zeolite), BOD(SWCS), COD(SWCS), TP(SWCS), and TSS(SWCS) fitted well into the Pseudo-second-order model.Overall, this study proved that SWCS and zeolite are viable alternatives for removing organic and nutrient pollutants.

Collaborative governance of ecological environment is an important issue that needs to be addressed in the development practices of urban clusters in China.Taking 41 cities in Jiangsu, Zhejiang, Shanghai and Anhui as spatial nodes and research objects, a evaluation system is constructed from the dimensions of "radiation effect", "outward connectivity" and "network density", and the relationship between cities in environmental governance and spatial layout is deduced.The research results show that environmental governance in the Yangtze River Delta region is still in the initial cooperation stage.There is already a form of policy cooperation and resource sharing within the region, and core cities such as Shanghai and Hangzhou have played a leading role, but the economically backward cities still outside the environmental governance network.This study is based on a more scientific indicator system and more detailed urban data, providing empirical support for further improving the environmental governance evaluation system and promoting high-quality regional development.

In order to solve the problem of increasingly serious resource pressure and urban development imbalance in Beijing, further promote the sustainable development of the city and improve the allocation efficiency of resource factors, this paper divides the resource factors system of Beijing into four parts: economic subsystem, social subsystem, environmental subsystem and resource subsystem.Based on System Dynamics, this paper establishes a System Dynamics model for optimizing the efficiency of capital resource factor allocation, sets up five simulation scenarios combining the misallocation of capital resource factor resources, and analyses how to further optimize resource allocation through system simulation and empirical methods.It is found that the System Dynamics model of capital resource factor allocation efficiency optimization has satisfactory predictability.Additionally, social benefit enhancement type and resource-saving type can realize efficient allocation of economic, social, environmental and resource elements, and provide a conducive idea for further promoting urban sustainable development policies.

Food companies are increasingly interested in the effective application of sustainable and innovative techniques able of making by-products management less expensive if not even a source of additional incomes.Since several by-products coming from the food processing industry are rich in high-power bioactive molecules, the recovery of such substances is currently the most promising means, either for reusing them as ingredients in functional foods or for applications in many sectors such as the packaging one.Indeed, combining bioactive molecules extracted from vegetables and fishery by-products can contribute to make biofilm with antimicrobial and antioxidant effects.Moreover, from the point of view of sustainability, it is necessary to replace chemical extraction techniques, characterized by heavy environmental side effects.In this paper, the chitin extraction from deep-water shrimp (Aristeus antennatus) by-products was performed by using enzymes and organic acids in alternative of harsh chemicals.As for the vegetable products, the ultrasound-assisted extraction (UAE) was applied for a more sustainable extraction of the bioactive molecules from tomato pomace by-products (seeds and peels).Preliminary results showed that the enzymes reduced significantly the protein content in the shrimp by-products, while formic acid was able to remove 100% of the minerals, being as effective as hydrochloric acid.The UAE, performed using water as the "green" solvent, for 20 min at temperature below 40C, was effective in the complete extraction of polyphenols from tomato pomace by-products.Moreover, an amount of -carotene of 8.64 mg/100g DW, equal to 50% of what reported in the literature was extracted.

In this work, Equisetum ramosissimum Desf. is used as a biosorbent to test the adsorption of the dye crystal violet.The effects of initial dye concentration, duration, temperature, pH, point of zero charge pHpzc, and adsorbent dose were studied.The isotherm equations for Langmuir, Freundlich, Temin, Sips, Toth, and Khan were modified using the results of the experimental experiments.The adsorption isotherm data showed the best agreement with Langmuir, one of the 2-parameter isotherm models, and Sips, one of the three-parameter isotherm models.With an adsorption capacity of 17.27 mg/g, Equisetum ramosissimum Desf.showed good efficacy in removing Crystal Violet from an aqueous solution.When the adsorption kinetics were looked at, the so-called secondorder kinetic model fit the data the best.This suggests that chemical sorption may be the phase that limits the rate of adsorption.The adsorption isotherms obtained at different temperatures were used to calculate the Gibbs free energy (∆G*), enthalpy (∆H*), and entropy (∆S*) of adsorption.The reported positive ∆G* values indicate that spontaneous adsorption does not occur.We also looked into thermodynamic factors.For 10 g/L of adsorbent, 150 rpm mixing speed, 100 mg/L of starting dye concentration, and 6.2 pH, the activation energy (Ea) was 11.209 kJ/mol.On the other hand, the entropy change (∆S*) was 0.111 kJ/mol, while the enthalpy change (∆H*) was 40.434 kJ/mol.The findings of this investigation demonstrated that biosorbents derived from Equisetum ramosissimum Desf.may be employed as an effective and acceptable adsorbent in the removal of Crystal Violet dye from an aqueous solution.

Although China has produced a huge amount of waste concrete, the recycling rate of waste concrete is still very low.At present, the techniques of recycled concrete are relatively mature and how to promote its development from a nontechnical perspective needs to be investigated.This paper aims to thoroughly analyze the critical success factors (CSFs) of recycled concrete utilization and explore the complex relationships between them.The stakeholders and related 42 CSFs were initially identified.Then, social network analysis (SNA) was employed to analyze the empirical data of 192 questionnaires collected in China.The results indicated that market demand for recycled concrete, establishment of government information platform, willingness to separate and recycle waste concrete of demolition enterprise, higher recovery price paid by resource-based enterprise, government's supervision intensity, government's demonstration project, government's economic incentives and government's publicity and popularization of recycled concrete knowledge were the key factors.Government, demolition enterprise and recycling enterprise were found as the pivotal players.The CSFs and stakeholders explored in this study will provide useful guidance for decision-making in the recycled concrete utilization process.The findings also lay the foundation for searching ways to control these key factors and formulating policies in China, which need be studied in the future.