PMID- 26919299
OWN - NLM
STAT- MEDLINE
DCOM- 20170102
LR  - 20170725
IS  - 1095-7103 (Electronic)
IS  - 0021-9797 (Linking)
VI  - 469
DP  - 2016 May 1
TI  - Removal of chemical oxygen demand from landfill leachate using cow-dung ash as a 
      low-cost adsorbent.
PG  - 338-343
LID - S0021-9797(16)30105-9 [pii]
LID - 10.1016/j.jcis.2016.02.025 [doi]
AB  - The application of cow dung ash was assessed for the removal of organic 
      contamination from the wastewater using landfill leachate of known Chemical 
      Oxygen Demand (COD) concentration in batch mode. The effect of various parameters 
      like adsorbents dose, time, pH and temperature was investigated. Results indicate 
      that upto 79% removal of COD could be achieved using activated cow dung ash (ACA) 
      at optimum temperature of 30  degrees C at pH 6.0 using 20 g/L dose in 120 min, whereas 
      cow dung ash (CA) shows 66% removal at pH 8.0 using 20 g/L dose, also in 120 min. 
      Data also shows that ACA exhibited 11-13% better removal efficiency than CA. COD 
      removal efficiency of various adsorbents was also compared and it was found that 
      ACA offers significantly higher efficiency. Freundlich and Langmuir adsorption 
      isotherms were also applied, which depicts good correlations (0.921 and 0.976) 
      with the experimental data. Scanning electron microscope (SEM) images shows that 
      after the activation, carbon particles disintegrate and surface of particles 
      become more rough and porous, indicating the reason for high adsorption 
      efficiency of ACA. Hence, ACA offers a cost-effective solution for the removal of 
      organic contaminants from the wastewater and for the direct treatment of landfill 
      leachate.
CI  - Copyright (c) 2016 Elsevier Inc. All rights reserved.
FAU - Kaur, Kamalpreet
AU  - Kaur K
AD  - Department of Environment Studies, Panjab University (PU), Chandigarh 160014, 
      India.
FAU - Mor, Suman
AU  - Mor S
AD  - Department of Environment Studies, Panjab University (PU), Chandigarh 160014, 
      India; Centre for Public Health, Panjab University (PU), Chandigarh 160025, 
      India.
FAU - Ravindra, Khaiwal
AU  - Ravindra K
AD  - School of Public Health, Postgraduate Institute of Medical Education and Research 
      (PGIMER), Chandigarh 160012, India. Electronic address: Khaiwal@yahoo.com.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160206
PL  - United States
TA  - J Colloid Interface Sci
JT  - Journal of colloid and interface science
JID - 0043125
RN  - 0 (Water Pollutants, Chemical)
RN  - 7440-44-0 (Carbon)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Adsorption
MH  - Animals
MH  - Biological Oxygen Demand Analysis
MH  - Carbon/*chemistry/*economics
MH  - Cattle
MH  - Feces/*chemistry
MH  - Oxygen/chemistry/*isolation & purification
MH  - Surface Properties
MH  - Water Pollutants, Chemical/*chemistry
OTO - NOTNLM
OT  - Adsorption
OT  - Chemical Oxygen Demand (COD)
OT  - Cow dung ash
OT  - Organic contamination
OT  - Wastewater and leachate
EDAT- 2016/02/27 06:00
MHDA- 2017/01/04 06:00
CRDT- 2016/02/27 06:00
PHST- 2016/01/04 00:00 [received]
PHST- 2016/02/05 00:00 [revised]
PHST- 2016/02/06 00:00 [accepted]
PHST- 2016/02/27 06:00 [entrez]
PHST- 2016/02/27 06:00 [pubmed]
PHST- 2017/01/04 06:00 [medline]
AID - S0021-9797(16)30105-9 [pii]
AID - 10.1016/j.jcis.2016.02.025 [doi]
PST - ppublish
SO  - J Colloid Interface Sci. 2016 May 1;469:338-343. doi: 10.1016/j.jcis.2016.02.025. 
      Epub 2016 Feb 6.