Case Studies of Energy-Saving Method for Renewable Energy Installation in Sewage Treatment plant

Author(s):  
Jong-Won Yoon ◽  
Chu-Young Kim ◽  
Chang-Kyu Choi
2018 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Erni Setyowati ◽  
Nashrullah Dahlan Lubis ◽  
Subrata Aditama Kittie A.U ◽  
Agitta Raras Putri

Indonesia is the fourth most populous country in the world. The highest population density exists in urban areas and gradually becomes lower in periphery or rural. Therefore the city in Indonesia often looks slum because of over density. The village is the smallest part of a city. In crowded cities there are often slum villages. This paper highlights a model of slum villages in Wonosobo, Sruni village, and solutions to transform socio-cultural communities through renewable energy design based on low carbon concept. The method used is quantitative method based on demographic data of Sruni village, Wonosobo. Based on data and analysis, it is found that renewable energy that can be applied in Sruni village are sanitation, drainage and water waste management, solid waste, rain water harvesting, water wheel and solar panel energy. At the end of the discussion, it is concluded that there are needs to be re-densification or verticalization of the house, in order to obtain more public green open spaces. Meanwhile, based on quantitative analysis, Sruni village needs rain water harvesting system, additional 1 unit of communal Sewage Treatment Plant (STP) serving 80-100 households gray and black water, and 1 units of water wheels to accomodate electricity need of four inhabitant RTs in Sruni village .


2014 ◽  
Vol 9 (3) ◽  
pp. 398-408
Author(s):  
Woonou Cha ◽  
Wan Myung Chun ◽  
Byoung Soo Kim ◽  
Miyoung Choi ◽  
Jinman Kim

To construct an energy saving airflow-controlling system for Doyang sewage treatment plant, the factors affecting airflow of the influent was analyzed in this study. This research analyzed the operation data of Doyang sewage treatment plant for 912 days. As a result, the key factors deciding the optimum airflow were found to be temperature, F/M ratio, the loading rate of BOD5 and T-N of the influent. Among the factors, the temperature of the influent had the most decisive effect on the aeration volume. The result showed that an increase of 1 °C of the influent requires 45.3 m3/h airflow. Since the factors affected by seasons like flow rate, F/M ratio and MLSS affect airflow required of blowers, and the change of temperature is considered to intensify the change of airflow even more. Therefore, it is preferable to consider flow rate, F/M ratio, MLSS and water temperature altogether than considering only one factor when deciding airflow of blowers. The results of this research can be utilized as indicators when designing energy saving system for sewage treatment plants.


2008 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Suzana Ramli ◽  
Aminuddin Mohd Baki ◽  
Muhamad Azmi Ayub ◽  
Suhaimi Abdul Talib ◽  
Ramlah Mohd Tajuddin ◽  
...  

Biogas is a product of decomposition of organic matter during the process of anaerobic digestion (AD). The main components are methane and carbon dioxide. The methane content in the biogas enables it to be used as fuel which can be converted to heat and electricity. The biogas generated by the anaerobic digesters has the potential to be redirected from the flaring facilities to renewable energy (RE) facilities. The biogas may then be used to generate electricity, which in turn can operate the sewage treatment plant (STP) itself. However, feedbacks from the sewerage industry indicated that heavy investments are needed for any RE initiatives on biogas generated by sewage sludge. In order to find the cost effective way of generating energy from biogas, fundamental relationships are necessary to enable development of prototype in the future. Thus, this paper presents a study to establish the relationship between the volume of sludge and the amount of power and energy that can be generated.


2017 ◽  
Vol 142 ◽  
pp. 1230-1237 ◽  
Author(s):  
Qunli Zhang ◽  
Donghan Sun ◽  
Mingshuang Wang ◽  
Chaohui Yin

2020 ◽  
Vol 24 (5 Part B) ◽  
pp. 3149-3156
Author(s):  
Na Li

Objective: The paper is to study the sewage treatment degradation thermal energy management system of a sewage treatment plant, to achieve the energy saving and emission reduction. Methods: This paper studies the electron equivalent reaction of biochemical reaction of organic matter. Under the environmental conditions of biochemical degradation of sewage, biochemical oxygen demand (BOD5) is used to indicate the amount of heat generated by the degradation of organic matter in sewage. The paper designs a management system based on sewage heat recovery, and uses it to carry out heat recovery of sewage. Also, the energy-saving benefits produced by the heat management system are studied. Results: The sewage heat recovery system is more energy-efficient than the common air-conditioning supply system. In the use of sewage heat management system for one year, it achieves energy saving of 30.4% better than that of ordinary air-conditioning systems. The system for one year saves electric energy of 2145464 kWh, which is equivalent to saving 2511994?104 kJ primary energy. This system saves 858.2 tons per year of standard coal, reduces CO2 emissions by 2789.1 tons per year, reduces SO2 emissions by 19.61 tons per year, reduces NO2 emissions by 7.12 tons per year, reduces ash emissions by 135.19 tons per year, and saves tap water replenishment 40243 tons per year. Conclusion: The sewage thermal energy management system can utilize the thermal energy in the sewage, thereby using the sewage as a new clean energy. It can effectively improve China?s current energy shortage and make a substantial contribution China?s energy saving and emission reduction goals.


Desalination ◽  
2010 ◽  
Vol 252 (1-3) ◽  
pp. 120-126 ◽  
Author(s):  
Ujjaini Sarkar ◽  
Dwaipayan Dasgupta ◽  
Trina Bhattacharya ◽  
Sandip Pal ◽  
Tamaghna Chakroborty

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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