نتایج جستجو برای: wastewater treatment

تعداد نتایج: 1410670  

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: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2003
T K Chen C H Ni J N Chen

This research focused on the biological treatment of high-strength organic nitrogen wastewater, and presented the results from the nitrification and denitrification of an actual industrial wastewater using anoxic/aerobic process. The opto-electronic industrial wastewater often contains a significant quantity of organic nitrogen compounds and has a ratio over 95% in organic nitrogen (Org-N) to t...

2000
Ursula J. Blumenthal

Executive Summary 4 1. Introduction 7 2. Agricultural Reuse 8 2.1 Background 8 2.2 Current WHO Guidelines, and standards for selected countries 8 2.3 Summary of evidence supporting WHO (1989) Guidelines 11 2.3.1 Effects of use of untreated wastewater 11 2.3.1.1 Effects on farm workers or wastewater treatment plant workers 11 2.3.1.2 Effects on consumers of vegetable crops 12 2.3.2 Effects of us...

Journal: :Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit 2006
A H Mahvi E B Kia

To assess the type and load of helminths in wastewater and the quality of treatment, we examined the raw and treated wastewater of 8 wastewater treatment plants (WTP) in Tehran and 2 in Isfahan for the presence of helminth eggs during 2002-2003. Wastewater samples obtained from both inlet and effluent of each treatment plant were examined on several occasions using the modified Bailenger method...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2002
J Vollertsen T Hvitved-Jacobsen Z Ujang S A Talib

Sewer system design must be integrated with wastewater treatment plant design when moving towards a more sustainable urban wastewater management. This integration allows an optimization of the design of both systems to achieve a better and more cost-effective wastewater management. Hitherto integrated process design has not been an option because the tools to predict in-sewer wastewater transfo...

2005
B. Han J. Kim Y. Kim

Radiation processing was found effective in wastewater purification and disinfection, and has been investigated in many countries through laboratory scale and pilot scale facilities. This technology can be applied to the treatment of industrial wastewater from textile dyeing industries, papermill and petrochemical processes, and also for the reclamation of effluent from municipal wastewater tre...

2017
Chao Ma Hanquan Wen Defeng Xing Xuanyuan Pei Jiani Zhu Nanqi Ren Bingfeng Liu

BACKGROUND Simultaneous wastewater treatment and lipid production by oleaginous microalgae show great potential to alleviate energy shortage and environmental pollution, because they exhibit tremendous advantages over traditional activated sludge. Currently, most research on wastewater treatment by microalgal are carried out at optimized temperature conditions (25-35 °C), but no information abo...

2017
M Pushpalatha M B Krishna

In recent year large amount of water and wastewater generated from various industries and produce organic matters and contaminated the water, this organic this organic compound in water poses serious problems to public health as well as environment. The advanced oxidation process (AOPs) is one of the advanced treatment method for wastewater remediation. In AOPs, ElectroFenton process (EFP) is o...

2015
Alireza Mesdaghinia Simin Nasseri Amir Hossein Mahvi Hamid Reza Tashauoei Mahdi Hadi

The amount of wastewater characteristics loading is one of the main parameters in the design of wastewater collection and treatment systems. The generation per capita per day (GPCD) of wastewater characteristics was estimated by analyzing the monthly data of nine wastewater treatment plants in Tehran, capital city of Iran. GPCD values were calculated from measured collected wastewater flow, the...

2016
Tyler Malkoske Yulin Tang Wenying Xu Shuili Yu

China is one of the largest producers and users of brominated flame retardants (BFRs) in the world. This has led to ubiquitous environmental occurrence of the main BFRs commercially available in China, namely polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDs), and tetrabromobisphenol A (TBBPA). Wastewater from BFR manufacturing, manufacturing of BFR-based products, and e-wa...

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