scholarly journals Economic Sustainability in Wastewater Treatment Companies: A Regional Analysis for the Iberian Peninsula

2021 ◽  
Vol 11 (21) ◽  
pp. 9876
Author(s):  
Eleonora Santos ◽  
Inês Lisboa ◽  
Teresa Eugénio

An important part of environmental degradation is caused by the discharge of untreated or mistreated wastewater. The reuse of water is paramount to the National Strategic Plan for the Water Supply and Wastewater Sanitation Sector in Portugal and Spain. Since centralized treatment systems have proved to be inefficient, tackling environmental issues requires a regional approach. Wastewater treatment plants (WWTPs) mitigate environmental impacts and contribute to the financial savings of other firms. However, the literature evaluating WWTPs’ financial performance and economic sustainability is scarce. The implementation of a resource recovery technology depends heavily on economic viability. Thus, this paper analyses the financial sustainability of 222 WWTPs in the Iberian Peninsula by NUTS II regions in 2016–2019 to assess the region with the best performance and financial stability and provide regional policy implications. Using the SABI database, this research encompasses a numerical and narrative analysis of key financial ratios. Results show that firms in Algarve and La Rioja exhibit higher financial sustainability when compared to other regions. Results can foster enhancements in the governance of regulated utilities.

2020 ◽  
Vol 4 (11) ◽  
pp. 5835-5850
Author(s):  
Oliver Grasham ◽  
Valerie Dupont ◽  
Timothy Cockerill ◽  
Miller Alonso Camargo-Valero ◽  
Martyn V. Twigg

Wastewater treatment plants can be centres of green H2 production via the novel method presented for co-reforming of bio-ammonia and bio-methane.


2020 ◽  
Vol 1 (3) ◽  
pp. 16-22
Author(s):  
Oleksandr Gerega

The relevance of the researching and ensuring financial and economic sustainability of trade is proved. The essential structural characteristics of financial and economic sustainability are generalized. The specifics of managing the financial and economic sustainability of trade business are indicated. The macroeconomic characteristics of financial and economic sustainability of trade in Ukraine as the volume of equity, balance currency, sales of goods of the trade enterprises, current assets, current liabilities and provision, own current assets of trade enterprises are analysed. The financial and economic sustainability of trade enterprises in Ukraine was assessed using the ratios of provision of current assets to own funds, provision of stocks with own funds, maneuverability of equity, mobility, permanent assets, financial stability and financial dependence. Purpose. The purpose of the research is to analyse the condition and development trends of macroeconomic characteristics of financial and economic sustainability of trade in Ukraine and justification proposals for public policy to stimulate its strengthening. Methodology. The following scientific methods were used during the research: analysis, synthesis and comparison – to research the prerequisites for ensuring the financial and economic sustainability of trade enterprises; statistical analysis – to calculate the key macroeconomic characteristics of financial sustainability and liquidity of trade enterprises; groupings, logical analysis, strategic management – to form priorities and means of state policy to stimulate the strengthening of financial and economic sustainability of trade business. Results. The low level of financial sustainability and liquidity of the trade sector in Ukraine has been empirically proven. It is established that a critical decrease in the financial and economic sustainability of the trade business occurred in 2014-2015. In 2012, the level of financial sustainability and liquidity of trade enterprises was the highest. Since 2016, the gradual restoration of financial and economic sustainability of trade business in Ukraine has begun. However, its level is still insufficient, which requires justification and implementation of effective measures of state regulation in this area. It is proved that strengthening the financial and economic sustainability of trade enterprises in Ukraine requires the formation and implementation of a common (state and business entities) policy aimed at strengthening the financial and economic sustainability of trade enterprises in Ukraine. The policy should be implemented in the following areas: alternative forms of the financial result formation, improvement of financial and economic attractiveness of enterprises, distribution of financial and economic risks with the manufacturing sector, realization of financial potential of domestic market by enterprises. Practical implications. The means of the state policy of stimulation and strengthening of financial and economic sustainability of the trade enterprises in Ukraine are defined. Value/originality. The methodical approach to the formation of tools and means of policy to strengthen the financial and economic sustainability of the country’s trade business has been further developed.


2021 ◽  
Vol 166 ◽  
pp. 112227
Author(s):  
Magda C. Sousa ◽  
Maite deCastro ◽  
Jesús Gago ◽  
Américo S. Ribeiro ◽  
Marisela Des ◽  
...  

2020 ◽  
Vol 15 (2) ◽  
pp. 142-151
Author(s):  
Peter Lukac ◽  
Lubos Jurik

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.


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