Research Paper
Monitoring and numerical analysis of pore water pressure changes Eyvashan dam during the first dewatering period

Behrang Beiranvand; Mehdi Komasi

Volume 6, Issue 1 , January 2019, Pages 1-7

https://doi.org/10.22126/arww.2019.1017

Abstract
  The performance of dams due to high operating costs and irreparable damages caused by failures in the construction phase and during the dewatering and exploitation period should verified and monitored by proper behavioural analysis. Dewatering the dams will result in the saturation of the embankment ...  Read More

Research Paper
Prediction of the hydraulic jump length on sloping rough beds using meta- heuristic neuro-fuzzy model and differential evolution algorithm

Rahim Gerami Moghadam; Behrouz Yaghoubi; Mohammad Ali Izadbakhsh; Saeid Shabanlou

Volume 6, Issue 1 , January 2019, Pages 8-15

https://doi.org/10.22126/arww.2019.1019

Abstract
  Generally, Hydraulic jumps usually happen at the downstream of hydraulic structures like ogee spillways. In addition, one of the parameters affecting the proper design of stilling basin is calculation of the hydraulic jump length. In this study, a hybrid method (ANFIS-DE) was proposed for modeling hydraulic ...  Read More

Research Paper
Developing a semi-distributed decision support system for great Karun water resources system

Seyed Mohammad Ashrafi; Maral Mahmoudi

Volume 6, Issue 1 , January 2019, Pages 16-24

https://doi.org/10.22126/arww.2019.1042

Abstract
  In this study, water resources system of Great Karun watershed is modelled as a semi-distributed system considering the diversity of demand sites downstream of Olya Gotvand and Dez reservoirs in southwest of Iran. The main aim of the present study is to develop a basin's decision-support system to assist ...  Read More

Research Paper
Series and parallel pipelines system solutions using Regula Falsi method scripted in Mathematica

Majid Rahimpour; Mohamad Reza Madadi

Volume 6, Issue 1 , January 2019, Pages 25-31

https://doi.org/10.22126/arww.2019.1129

Abstract
  Friction factor is an important hydraulic parameter for design of pipeline systems. There are several formulations for calculating the friction factor, among which Colebrook–White equation is the most accurate and repute formula. Owing to the implicit nature of friction factor in Colebrook–White ...  Read More

Research Paper
Investigating methods in data preparation for stochastic rainfall modeling: A case study for Kermanshah synoptic station rainfall data, Iran

Mohammad Zeynoddin; Hossein Bonakdari

Volume 6, Issue 1 , January 2019, Pages 32-38

https://doi.org/10.22126/arww.2019.1130

Abstract
  Given the climate changes, achieving rainfall forecast is of high importance and facing such challenges affected markedly in vast areas of societies. Accordingly, numerous nonlinear and linear methods have been developed. Most hydrological phenomena like rainfall are consisted of both linear and nonlinear ...  Read More

Research Paper
Removal of sulfate from Gamasiab river water samples by using natural nano-Clinoptilolite

Amir Hossein Salimi; Sayed Farhad Mousavi; Saeed Farzin

Volume 6, Issue 1 , January 2019, Pages 39-44

https://doi.org/10.22126/arww.2019.1133

Abstract
  Rivers serve as one of the main sources of water supply. Human activities, salts in the soil and rocks and urban runoffs, as well as air contaminants, lead to contamination of river water. In this research, Gamasiab river, which is the upstream of Karkheh river, was selected as a case study. Sixteen ...  Read More

Research Paper
Plackett–Burman experimental design for the removal of diazinon pesticide from aqueous system by magnetic bentonite nanocomposites

Somayeh Heydari; Leili Zare; Hamideh Ghiassi

Volume 6, Issue 1 , January 2019, Pages 45-50

https://doi.org/10.22126/arww.2019.1134

Abstract
  The present study demonstrates the effective removal of diazinon pesticide from aqueous solutions by means of magnetic bentonite nanocomposite. The product was characterized by advanced techniques like scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and infrared spectroscopy ...  Read More

Research Paper
Evaluation of the performance of the intermittent cycle extended aeration system in detergent removal from bathroom greywater

Vahab Ghaleh Khondabi; Alireza Fazlali; Mojtaba Zolfaghari

Volume 6, Issue 1 , January 2019, Pages 51-55

https://doi.org/10.22126/arww.2019.1131

Abstract
  On average, 67 % of household wastewater is made up of greywater, which includes wastewater produced in household other than toilets. There are different biological treatment processes for greywater treatment. One of these systems is the sequencing batch reactor (SBR), which has proven to be an effective ...  Read More

Research Paper
Substrate removal kinetics and performance assessment of recirculation sand filters for treating restaurant greywater

Zahra Jamshidzadeh; Majid Tavangari Barzi

Volume 6, Issue 1 , January 2019, Pages 56-61

https://doi.org/10.22126/arww.2019.1135

Abstract
  Treated wastewater reuse for agriculture is an effective solution to cope with water scarcity conditions in arid and semi-arid areas. The aim of this study was the performance evaluation of a bench scale recirculation sand filter (RSF) for organic matter and nutrients removal from restaurant greywater ...  Read More

Research Paper
Reduction of membrane fouling in MBR by ZSM-5 nano adsorbent in various sludge retention times for phenol removal

Hossein Hazrati; Zahra Sadat Sajadian; Nader Jahanbakhshi; Mohammad Rostamizadeh

Volume 6, Issue 1 , January 2019, Pages 62-66

https://doi.org/10.22126/arww.2019.1132

Abstract
  In this paper, the effect of different sludge retention times (SRTs) on membrane fouling of membrane bioreactor (MBR) systems including synthesized ZSM-5 nano-adsorbent was investigated. Three MBRs including nano-adsorbent were applied in SRTs of 10, 50 and 100 d during six months for wastewater treatment. ...  Read More

Research Paper
Oxytetracycline removal from aqueous solutions using activated carbon prepared from corn stalks

Danial Nayeri; Seyyed Alireza Mousavi; Azadeh Mehrabi

Volume 6, Issue 1 , January 2019, Pages 67-72

https://doi.org/10.22126/arww.2019.1136

Abstract
  In this study, oxytetracycline removal from aqueous solution by activated carbon prepared using corn stalks has been investigated. The adsorbent was characterized using Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope (SEM). The effects of main variables; adsorbent ...  Read More

Research Paper
Estimation of barley yield under irrigation with wastewater using RBF and GFF models of artificial neural network

Yahya Choopan; Somayeh Emami

Volume 6, Issue 1 , January 2019, Pages 73-79

https://doi.org/10.22126/arww.2019.1137

Abstract
  In this study, barley yield has been estimated via radial basis function network (RBF) and feed-forward neural networks (GFF) models of artificial neural network (ANNs) in Torbat-Heydarieh of Iran. For this purpose, a dataset consists of 200 data at three levels of irrigation with well water, industrial ...  Read More