نتایج جستجو برای: water and wastewater

تعداد نتایج: 16938401  

Introduction: The use of antiseptics and disinfectants in daily health protocols has a consequence of changing the quality of wastewater to be toxic to microbes. As a result, microbiological wastewater treatment has the potential to not be processed properly. To solve the problem of disinfectant-rich wastewater, a plant-based treatment method can be useful, the implementation of which is a land...

Journal: :محیط زیست طبیعی 0
امیررضا کشتکار استادیار گروه مدیریت مناطق بیابانی، مرکز تحقیقات بین المللی بیابان، دانشگاه تهران، تهران محمدرضا احمدی پژوهشگر بخش آب و محیط زیست، پژوهشکدۀ سنگ آهن و فولاد، شرکت معدنی و صنعتی گل‏گهر، سیرجان، کرمان هادی آتشی دانشیار بخش علوم دامی دانشکدۀ علوم کشاورزی، دانشگاه شیراز، شیراز حسین حمیدی فر استادیار بخش مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز سیدمهدی رضوی کارشناس ارشد مهندسی منابع طبیعی، مهندسان مشاور سبخا، اراک حمیدرضا ناصری استادیار گروه مدیریت مناطق بیابانی، مرکز تحقیقات بین المللی بیابان، دانشگاه تهران، تهران احمد یزدان پناه

the aims of this study were to evaluate the treatment efficiency and effectiveness of vetiveria zizaniodesof two samples of unconventional water of golgohar mining and industrial company. the experimental samples were included mine wastewater and saline ground water. this research was conducted in a greenhouse at central water research laboratory of university of tehran. this experiment was des...

2002

Biosolids are a byproduct of wastewater treatment and contain organic and inorganic materials removed from the wastewater. These residuals are concentrated by various methods to semi-solid form. Likewise, sludge is generated during water treatment and contains solid materials removed from water as well as chemicals added during the treatment process. The final residual water content depends on ...

Polymeric nanofbers, specifcally fabricated by electrospinning, offer viable means useful for a wide range of applications such as health, energy and environmental issues. However, among the mentioned sectors, desalination and water/wastewater treatment applications have been highlighted during the past decade. This article focuses on the present status and recent develo...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
Ori Lahav Malka Kochva Jorge Tarchitzky

Over 90% of the water supplied in the coastal region in Israel in 2013 (600 Mm(3) y(-1)) will be from desalination plants. The wastewater generated from this water (>400 Mm(3) y(-1)) is planned, after proper treatment, to be reused for agricultural irrigation, making this low-salinity water the main agricultural-sector future water source. In this respect both the Mg(2 + ) concentration and the...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2015
A Guerrini G Romano C Leardini M Martini

Efficient water management is a priority in the European Union, since the operational efficiency of many water utilities is very low compared to best practice. Several countries are restructuring the water industry to save costs. Larger-scale operations and vertical integration are promoted to achieve scale and scope economies; however, the literature is not unanimous that such economies exist....

2014
Mohan Jiang Chris T. Hendrickson Jeanne M. VanBriesen

This study estimates the life cycle water consumption and wastewater generation impacts of a Marcellus shale gas well from its construction to end of life. Direct water consumption at the well site was assessed by analysis of data from approximately 500 individual well completion reports collected in 2010 by the Pennsylvania Department of Conservation and Natural Resources. Indirect water consu...

Gholamali Memary, Mehdi Fazlzadeh Davil, Mohammad Fahiminia, Mohammad Farrokhi, Mohammad Talebi,

 Aims of the Study: The objective of this study was to appraise wastewater management approaches in rural areas of Iran, restrictions, effects on environment and also definition of suitable management approaches in wastewater for future. Materials & Methods: This descriptive study was performed in 2010 in rural areas of Iran. A questionnaire was prepared with subjects such as availa...

2012
Yifei Guo Li Yang Xiaoliang Cheng Xiangtao Wang

The demand for fresh water is increasing with the growth in world population, and obtaining an adequate supply of clean water has likely been the challenge for many countries. To solve this problem, using water from unconventional sources is the best method from economic point of view. To make wastewater reuse safety, all the pollutants including biodegradable organic matter [1,2], pathogens [3...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2008
X C Wang R Chen Q H Zhang K Li

In an arid and water deficient urban area, such as Xi'an in the northwest region of China, gardening and forestation often use large amounts of tap water. Therefore, there is a need for treated wastewater reuse for such purpose to mitigate urban water shortage, especially in the newly developed housing area, where a high green coverage is often required for both commercial value and living cond...

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