Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Optimizing Energy Consumption in Pumping Station using by Darwin Scheduler model
3
12
FA
javad
karami
irrigation, agriculture, Ferdowsi, Mashhad, Iran
jkkormanje@gmail.com
alireza
moghadam
Water Engineering, Faculty of Agriculture, University of Urmia, Iran
alireza.moghadam66@gmail.com
alireza
farid hoseini
Water Department, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
seebooyeh@yahoo.com
hosein
sanie nejad
Water Department, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
kani.kh.k.kani@gmail.com
ali naghi
ziyaee
Water Department, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
ali.karimi79@gmail.com
10.22112/jwwse.2017.87910.1006
Todays, in addition to the optimal hydraulic design of water distribution networks, the optimization of energy consumption in pumping station is more important for researchers. Due to the energy costs include the major part of operation cost at a water network, in this paper study the optimization of daily energy cost of pumping station with five parallel pumps, using by Darwing scheduler module at WaterGEMS V8i software based on Simple Genetic Algorithm (SGA) and Fast Messy Genetic Algorithm (FMGA). The hydraulic constraints include the minimum pressure and maximum pressure of junctions, maximum velocity of pipes and maximum number of economic off and on of pumps. The results showed that the energy costs reduced 15 and 10 percent using by Simple Genetic Algorithm (SGA) and Fast Messy Genetic Algorithm (FMGA), respectively, with regard to electricity tariffs in To optimize the performance was achieved without pumps.so we achive 10 and15persent reduce energy cost
water distribution networks,optimization,genetics algorithm,Darwin Scheduler
https://www.jwwse.ir/article_55715.html
https://www.jwwse.ir/article_55715_660ee19dcc62326cb8f044b6d58a5ea2.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
evaluation of economic efficiency of low thickness light ductile iron pipe in comparison with polymeric and composite pipes
13
20
FA
Mehrdad
Rashidzadeh
supervisor of Innovation and product diversification department in HANYCO
rashidzadeh@hanyco.net
10.22112/jwwse.2017.87950.1007
Technical characteristics should be matched with desired performance. Investigation of cost effectiveness of pipe materials in short and long term usages is essential. In some cases, a pipe material has low cost and it seems more cost effective than other pipes but repair and maintenance cost is more than other pipes. Ductile iron pipes have some advantages in comparison with plastic, steel and GRP pipes but in the field of weight and cost effectiveness, there are some critics. New developments led to introduction of new generation of ductile iron pipe. Light & Low thickness ductile iron pipe that can plug to plastic pipes easily or replaced by damaged plastic pipes in pipelines is the new solution that represented according to the last developments in ductile iron pipes production technology. It is very reasonable to use this kind of ductile iron pipe in comparison with other pipe materials. Economic reviews show that use of low thickness ductile iron pipe can improve the cost effectiveness factor to about 50% in comparison with common ductile iron pipes. Low thickness ductile iron pipes are really light, resistant to corrosion, little head loss in pipe line, easy tapping with restriction of illegal tapping, compatibility with plastic pipes and low leak tightness that happens in pipelines can achieve about 20% cost reduction.
Pipe,Ductile iron,Low thickness Pipes,Light weight
https://www.jwwse.ir/article_55717.html
https://www.jwwse.ir/article_55717_5e4d4b9f1bdd67aaf71b28fd2bb012af.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Reliability analysis of wastewater treatment plant and recycling of industrial Wastewater Treatment Plant of Industrial complex of Moorchekhort by using Bayesian networks
21
27
FA
razieh
analouei
Isfahan university of technology
r_analooei@yahoo.com
Masoud
Taheriyoun
0000-0002-9228-6258
Assistant Professor,
taheriyoun@cc.iut.ac.ir
hamidreza
safavi
0000-0002-9233-9202
Associate Professor,
hasafavi@cc.iut.ac.ir
10.22112/jwwse.2017.87566.1011
Nowadays, the using of treated wastewater in diverse purposes such as agriculture, industry and irrigation is converted to an appropriate solution for water shortage. Despite the advantages of water reuse, due to various pollutants in wastewater and lack of complete treatment in accordance with the standards, it is always risky. Therefore risk assessment should be conducted in order to determine the reliability of system and offer solutions to enhance the reliability of wastewater treatment system. Risk is the possibility of occurrence an adverse event and the severity of the negative effects of it. In the present study, Bayesian network approach is used for risk assessment of wastewater treatment plant. In this method the possibility of an event can be obtained by creating cause and effect relationship between the components of the system. <br /> Wastewater treatment plant of industrial complex of Moorchekhort is selected for case study in this study. The fouling, corrosion and biofilm of using treated wastewater for industry have been determine as final events. The model input datas have been formed by experts, specialists and laboratory datas from wastewater treatment plant of industrial complex of Moorchekhort. The reliability of wastewater treatment system analyzed by Bayesian network model showed %70. The efficiency of Bayesian network in order to determine elements of failure and estimate the risk of wastewater treatment system that is not adapted to effluent standards for the industry is shown in this study.
Wastewater Treatment Plant,Risk and reliability assessment,Bayesian network model,Water Reuse
https://www.jwwse.ir/article_55720.html
https://www.jwwse.ir/article_55720_7c0b0131abd8650e6a9bc6aaaa8d5fe0.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Technical and economic aspects of water desalination worldwide
28
37
FA
Mohammad Hossein
Sarrafzadeh
0000-0002-8365-6800
دانشگاه تهران- پردیس دانشکده های فنی - دانکشکده مهندسی شیمی
sarrafzdh@ut.ac.ir
10.22112/jwwse.2017.89834.1030
As a consequence to global warming and climate change all around the world and irregular consumption of underground water resources, the societies are being faced to a serious dangers named water scarcity. Population growth, need to food security, climate changes and agricultural needs have forced the societies to search for appropriate alternatives for fresh water resources. Unconventional water resources are known as one of the most important alternatives for fresh water on the earth. One of the most sources of unconventional waters is saline or brackish water. Considering the great amount of saline water on the earth, water desalination can be a fruitful method to overcome the crisis of water scarcity. Water desalination technologies will be categorized into two main groups of thermal and membrane technologies. In this paper, at first the most important and most applicable desalination technologies around the world are studied, then the influences of desalination technologies regarding energy and economy have been evaluated. At the end, the examples of desalination units in different parts of the world have been studied.
Desalination,seawater,Membrane,Energy
https://www.jwwse.ir/article_55723.html
https://www.jwwse.ir/article_55723_8c86d172cc7a495292e7efcfbc30b9e1.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Optimization of power-water cogeneration in thermal power plants
38
45
FA
Farshid
Parhizkar
Department of Energy System Engineering, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran
farshid.parhizkar70@gmail.com
Omid
Pourali
Department of Energy System Engineering, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran
pourali@kntu.ac.ir
10.22112/jwwse.2017.87963.1029
In recent years, due to the overuse of natural water resources and increase in the demand of water, various methods of water desalination have attracted enormous interest. In order to supply drinking and industrial water, seawater desalination process can be used as a suitable method. Thermal power plants are one of the major water consumer industries that a lot of them are located in the coastal areas; therefore, power and water can be simultaneously generated using cogeneration technique, and consequently increase the efficiency of the existing power plants. In this paper, cogeneration of power (in an existing thermal power plant) and water (using the steam extraction turbine outlet of the existing power plant) has been investigated. According to the obtained results, it was understood that desalinated water production by a combination of reverse osmosis and thermal desalination (multi-stage flash distillation (MSF)) at flow rates higher than 800 m3/h is economically feasible.
Power-water cogeneration,Desalination,optimization,Genetic Algorithm
https://www.jwwse.ir/article_55724.html
https://www.jwwse.ir/article_55724_83e5e17a57b03ce92c1a309393b44858.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Pathology and Development Strategies and Expedition of Wastewater Projects Implementation
46
51
FA
Ali Asghar
Ghane
Deputy Director for Engineering and Development, Water & Wastewater Engineering Company
asghane@yahoo.com
Majid
Ghannadi
Consulting of national water and waste water direct manager
ghannadi48@gmail.com
10.22112/jwwse.2017.92634.1038
A review of the twenty years of experience in the implementation of wastewater projects in the country shows that in spite of many efforts and achieving the 46.18 percent of urban population utilizing modern sewage services, it is necessary to study the pathology of the implemented plans, the grounds for obtaining solutions tailored to the needs of the country and accelerate the comprehensive coverage of modern sewage services. Failure to pay attention to technical and economic justification in the studies of projects and the significant number of half-finished projects and unused capacities are among general harms resulted from sewage projects in the country to which the poor quality of effluent and the low efficiency of the treatment processes in some of the implemented projects should be added. Paying attention to the issue of economic market and effluent tariffs, transparency in effluent marketing and usage policies, the creation of appropriate patterns commensurate with the climate and operational capability, and the management of the maintenance and updating of facilities and manpower operating them, along with the creation of a ground for private sector to participate in implementing and managing projects are topics ahead of this section.
"wastewater plans","Pathology","Development"
https://www.jwwse.ir/article_55725.html
https://www.jwwse.ir/article_55725_bfcff980c8a12d7716dc28d0a496cfea.pdf
Journal of Water and Wastewater Science and Engineering
2588-3941
2588-395X
2
1
2017
03
21
Experience- JWWSE-2-1-Final
52
55
FA
Grit chamber unit is used to separate and remove suspending non-organic particles such as gravel, sand, seeds and other solids with faster sedimentation rates than perishable particles in sewage as well as scum and fat removal. Grit recycling in aerated grit chambers of wastewater treatment plants leads to a better management of treatment plants and minimizes the operational problems. In this study, the performance of European and American designed aerated grit chambers was compared with each other. The results indicated that the use of grit chambers designed by European standards, not only reduces the cost of initial investment and equipment, but also minimizes the operational problems in other treatment units and in general, it increases the .efficiency of treatment plants
Aerated grit chamber,American standard,European standard,Grit removal,Wastewater Treatment Plant
https://www.jwwse.ir/article_57251.html
https://www.jwwse.ir/article_57251_f4037de23ed2298522f1493a62ebce0e.pdf