نتایج جستجو برای: 254 and doc removal

تعداد نتایج: 16850949  

Journal: :Water 2022

The role of seasons in the removal dissolved organic carbon (DOC), nutrients and changes spectral properties matter (DOM) a large-scale surface flow constructed wetland (SF-CW) receiving reclaimed water composed three basins with different vegetation patterns was studied. Dissolved nitrogen efficiencies within summer (>50%) winter (<30%) were significantly different. SF-CW is enriched DOC...

Background and purpose: Natural Organic Matter (NOM) is precursor of disinfection by-products (DBPs) during chlorination, so removal of NOM from drinking water resources is a necessary task. Due to organophilic properties, Surfactant Modified Zeolite (SMZ) can adsorb more NOM. The aim of this study was to determine and compare the efficiency of NZ and SMZ in removal of Dissolved Organic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مهندسی موادو متالورژی 1393

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

Journal: :international journal of health studies 0
ahmad mahmoudi1 1. vice- chancellery of planning, mazandaran company of water and wastewater, mazandaran, iran. hassan ali shafahee1 aliakbar roudbari2* 2. center for health-related social and behavioral sciences research centre, shahroud university of medical sciences, shahroud, iran.

background : the aim of this study was to evaluate the performance of water ozonation on disinfection by-product formation. methods : experiments were carried out on samples taken from tajan river, mazandaran province, iran. samples of the pre-filtered raw water and from the 3.5-l water tank reservoir (wt) were analyzed for uv-254 absorbance, dissolved organic carbon (doc), hs and non-hs, chlor...

2014
Xue-Dong Lou Sheng-Qiang Zhai Bing Kang Ya-Lin Hu Li-Le Hu

A large portion of the global carbon pool is stored in peatlands, which are sensitive to a changing environment conditions. The hydrological loss of dissolved organic carbon (DOC) is believed to play a key role in determining the carbon balance in peatlands. Zoige peatland, the largest peat store in China, is experiencing climatic warming and drying as well as experiencing severe artificial dra...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: Treatment of hospital wastewaters has an important role in reducing the discharge of organics and pharmaceutical compounds into aquatic environments. Nowadays, advanced oxidation processes were extensively used for the removal of organic compounds from treated effluents. The study aimed to examine organic compounds removal from real treated effluent of a hospital treat...

Journal: :Water research 2005
Alex T Chow Fengmao Guo Suduan Gao Richard Breuer Randy A Dahlgren

Filters with a pore size of 0.45 microm have been arbitrarily used for isolating dissolved organic carbon (DOC) in natural waters. This operationally defined DOC fraction often contains heterogeneous organic carbon compounds that may lead to inconsistent results when evaluating trihalomethane formation potential (THMFP). A finer pore size filter provides more homogeneous DOC properties and enab...

2013
M. F. R. Zuthi H. H. Ngo W. S. Guo T. T. Nguyen

A novel sponge submerged membrane bioreactor (SSMBR) was developed to effectively remove organics and nutrients from wastewater. Sponge is introduced within the SSMBR as a medium for the attached growth of biomass. This paper evaluates the effects of new and acclimatized sponges for dissolved organic carbon (DOC) removal from wastewater at different mixed liquor suspended solids’ (MLSS) concent...

2015
Takashi Uruno Chie Masaki Junko Akaishi Kenichi Matsuzu Akifumi Suzuki Keiko Ohkuwa Hiroshi Shibuya Wataru Kitagawa Mitsuji Nagahama Kiminori Sugino Koichi Ito

The chemosensitivity of anaplastic thyroid cancer (ATC) to some cytotoxic agents was investigated by the histoculture drug response assay (HDRA). Thirty specimens from 22 patients with ATC were obtained from surgically resected subjects. The drugs tested were paclitaxel (PTX), docetaxel (DOC), adriamycin (ADM), nedaplatin (254-S), cisplatin (CDDP), carboplatin (CBDCA), etoposide (VP-16), 5-fluo...

Journal: :Chemosphere 2006
Ibrahim Saadi Mikhail Borisover Robert Armon Yael Laor

The potential of effluent DOM to undergo microbial degradation was assessed in batch experiments. Effluent samples from Haifa wastewater treatment plant and Qishon reservoir (Greater Haifa wastewater reclamation complex, Israel) were incubated either with effluent or soil microorganisms for a period of 2-4 months and were characterized by dissolved organic carbon contents (DOC), UV(254) absorba...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید