Electrochemical Carbon-Nanotube Filter Performance toward Virus Removal and Inactivation in the Presence of Natural Organic Matter

2012 ◽  
Vol 46 (3) ◽  
pp. 1556-1564 ◽  
Author(s):  
Md. Saifur Rahaman ◽  
Chad D. Vecitis ◽  
Menachem Elimelech
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Natural Organic Matter ◽  
Virus Removal ◽  
Filter Performance

scholarly journals Effective natural organic matter removal in pond water by carbon nanotube membrane with flocculation/adsorption

2017 ◽  
Vol 17 (4) ◽  
pp. 1080-1087
Author(s):  
Jieun Lee ◽  
Saravanamuth Vigneswaran ◽  
Yongshun Zhang ◽  
Ramireddy S. P. Raj Reddy ◽  
Zongwen Liu
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Water Treatment ◽  
Natural Organic Matter ◽  
Removal Rate ◽  
Pond Water ◽  
Aluminium Chloride ◽  
Superior Performance ◽  
Permeate Flux ◽  
Flux Decline

A carbon nanotube (CNT) ultrafiltration (UF) membrane was applied to natural organic matter (NOM) removal in pond water treatment. The source water was pretreated by flocculation and/or adsorption prior to the UF process to alleviate permeate flux decline and improve NOM removal efficiency. The performance of a commercial polyethersulfone (PES) UF membrane was compared to evaluate that of the CNT membrane. The CNT membrane outperformed the PES-UF membrane. The permeate flux, total organic carbon and humic acid (HA) removal rate of the CNT membrane was observed to be 230 LMH/bar, 60%, and 80% when 30 mg/L poly aluminium chloride (PACI) flocculation was applied. This highlights that the permeate flux was three times higher with slightly higher rejection efficiency than the PES-UF membrane. In particular, severe permeate flux decline was completely overcome by the CNT membrane with 30 mg/L PACI coagulation. For powder activated carbon (PAC) adsorption, even though there was a severe permeate flux decline in the CNT membrane, almost complete HA removal (98%) was achieved when 0.5 g/L PAC adsorption was coupled. Based on the superior performance of the CNT membrane with pretreatment, the CNT membrane is suggested to be a robust system for a high concentration of organic matter pond water treatment without membrane flux decline.

scholarly journals Ultrasound-assisted sorption of Pb(ii) on multi-walled carbon nanotube in presence of natural organic matter: an insight into main and interaction effects using modelling approaches of RSM and BRT

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 16083-16094 ◽  
Author(s):  
Maryam Foroughi ◽  
Hassan Zolghadr Nasab ◽  
Reza Shokoohi ◽  
Mohammad Hossein Ahmadi Azqhandi ◽  
Azam Nadali ◽  
...  
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Natural Organic Matter ◽  
Interaction Effects ◽  
Multi Walled Carbon Nanotube ◽  
Ultrasound Assisted ◽  
Insight Into ◽  
Modelling Approaches

The proposed mechanism for effect of HA on Pb(ii) removal using MWCNTs.

Removal of natural organic matter in water using functionalised carbon nanotube buckypaper

Carbon ◽  
2013 ◽  
Vol 59 ◽  
pp. 160-166 ◽  
Author(s):  
Xiaoshuang Yang ◽  
Jieun Lee ◽  
Lixiang Yuan ◽  
So-Ryong Chae ◽  
Vanessa K. Peterson ◽  
...  
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Natural Organic Matter

Preparation of engineered carbon nanotube materials and its application in water treatment for removal of hydrophobic natural organic matter (NOM)

2016 ◽  
Vol 57 (52) ◽  
pp. 24855-24866 ◽  
Author(s):  
Saeed Skandari ◽  
Ali Torabian ◽  
Gholamreza Nabi Bidhendi ◽  
Majid Baghdadi ◽  
Behnoush Aminzadeh
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Water Treatment ◽  
Natural Organic Matter

scholarly journals Ultrafiltration of natural organic matter from water by vertically aligned carbon nanotube membrane

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Ali Jafari ◽  
Amir Hossein Mahvi ◽  
Simin Nasseri ◽  
Alimorad Rashidi ◽  
Ramin Nabizadeh ◽  
...  
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Natural Organic Matter ◽  
Vertically Aligned

Transformation of Iodide by Carbon Nanotube Activated Peroxydisulfate and Formation of Iodoorganic Compounds in the Presence of Natural Organic Matter

2016 ◽  
Vol 51 (1) ◽  
pp. 479-487 ◽  
Author(s):  
Chaoting Guan ◽  
Jin Jiang ◽  
Congwei Luo ◽  
Suyan Pang ◽  
Chengchun Jiang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Carbon Nanotube ◽  
Natural Organic Matter

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

Sign in / Sign up

Export Citation Format

Share Document