نتایج جستجو برای: advanced wastewater treatment

تعداد نتایج: 1614484  

2011
J. K. Choi D. W. Kim H. S. Shin H. J. Yeon B. K. Kim Yeon. Fan D. Chang S. B. Han J. M. Hur B. R. Jung S. M. Park

The purpose of this research was develop a biological nutrient removal (BNR) system which has low energy consumption, sludge production, and land usage. These indicate that BNR system could be a alternative of future wastewater treatment in ubiquitous city(U-city). Organics and nitrogen compounds could be removed by this system so that secondary or tertiary stages of wastewater treatment satisf...

Journal: :The Science of the total environment 2015
Mònica Escolà Casas Kai Bester

The degradation of seven compounds which are usually recalcitrant in classical activated sludge treatment (e.g., diclofenac, propranolol, iopromide, iohexol, iomeprol tebuconazole and propiconazole) was studied in a biofilm reactor (slow sand filtration). This reactor was used to treat real effluent-wastewater at different flow rates (hydraulic loadings) under aerobic conditions so removal and ...

Journal: :تحقیقات نظام سلامت 0
حمیدرضا تشیعی رئیس مرکز تحقیقات و خودکفایی صنعتی، شرکت مهندسی آب و فاضلاب کشور مختار مهدوی فوق لیسانس مهندسی بهداشت محیط، کارشناس مرکز تحقیقات و خودکفایی صنعتی، شرکت مهندسی آب و فاضلاب کشور فرهام کرکانی فوق لیسانس مهندسی بهداشت محیط، مدیر پدافند غیرعامل شرکت مهندسی آب و فاضلاب کشور سید وحید غلمانی کارشناس عمران ، مسئول تصفیه خانه فاضلاب شهر یزد حسین عطائی فر سرپرست دفتر تحقیقات و خودکفایی صنعتی شرکت مهندسی آب و فاضلاب کشور

background: selection of different wastewater treatment methods depends on the kind of wastewater, geographical position of the community, quantity and quality of wastewater and effluent, technology and finance. natural wastewater treatment methods are simple, cheap and acceptable for developing countries specially small and remote countries and wetland is one of these methods. wetlands include...

Journal: :Environmental Chemistry Letters 2022

Abstract Wastewater is major source of contaminants originating from the production, usage, and disposal plastic materials. Due to their poor biodegradability these in municipal wastewater treatment plants, additional advanced oxidation processes such as electrochemical treatments have been developed improve standard biological treatment. Here we review applications for removal following contam...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2012
Damjan Balabanič Daphne Hermosilla Noemí Merayo Aleksandra Krivograd Klemenčič Angeles Blanco

There is increasing concern about chemical pollutants that have the ability to mimic hormones, the so-called endocrine-disrupting compounds (EDCs). One of the main reasons for concern is the possible effect of EDCs on human health. EDCs may be released into the environment in different ways, and one of the most significant sources is industrial wastewater. The main objective of this research wa...

Journal: :Water 2023

Antimicrobial resistance (AMR) is a serious problem for modern society, not only associated with clinical environments, but also the natural environment. Conventional wastewater treatment plants (WWTPs) are important nodes dissemination of antibiotic to aquatic environment since they reservoirs antibiotic-resistant bacteria (ARB), genes (ARGs), and residues. WWTPs designed remove these determin...

ژورنال: سلامت و محیط زیست 2009
آیتی, بیتا, احمدی, مریم, گنجی­دوست, حسین,

Background and Objectives: Upflow Sludge Blanket Filtration (USBF) system is a modification  of the conventional activated sludge process that incorporates an anoxic zone with an upflow sludge blanket filtration clarifier in one bioreactor. It has no inherent capacity limits and is used in a wide range of applications in municipal, industrial and agricultural wastewater treatment. The main obje...

Journal: :Water 2021

In recent years, many scientific studies have focused their efforts on quantifying the different types of pollutants that are not removed in wastewater treatment plants. Compounds emerging concern (CECs) been detected natural environments. The presence these compounds is new, but they may consequences future. These reach environment through various routes, such as wastewater. This review focuse...

Journal: :Bioresource technology 2009
Keri B Cantrell Kenneth C Stone Patrick G Hunt Kyoung S Ro Matias B Vanotti Joseph C Burns

Coastal bermudagrass (Cynodon dactylon L.) may be a potentially important source of bio-based energy in the southern US due to its vast acreage. It is often produced as part of a waste management plan with varying nutrient composition and energy characteristics on fields irrigated with livestock wastewater. The objective of this study was to determine the effect of subsurface drip irrigation wi...

Journal: :تحقیقات نظام سلامت 0

abstract background: heavy metals in industrial wastewater especially chromium (vi) are considered as the main environmental pollutants. methods: electrochemical cell made of plexiglass with a volume of 1.95 lit was used. iron and graphite electrodes, electricity conductor, each with dimensions of 0.1×3×10 cm (width×length×height) were designed and built. tests were carried out in various condi...

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