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1. Adsorbed complex and laboratory geotechnics of Quarry Dust (QD) stabilized lateritic soils

Author:
Van Duc, Bui; Kennedy, Onyelowe
Source:
Environmental technology & innovation 2018 v.10 pp. 355-363
ISSN:
2352-1864
Subject:
adsorption; cation exchange; cement; clay; dielectric properties; dust; environmental technology; flocculation; ions; laboratory experimentation; laterites; quarries
Abstract:
... The effect of ordinary Portland cement, OPC+Quarry Dust, QD on the adsorbed moisture, diffused double layer (DDL), dielectric constant, density and repulsion potential (RP) of treated lateritic soil was investigated through laboratory tests. The preliminary tests showed that the natural soil was an A-2-7 soil, according to the AASHTO classification system, highly plastic soil and high swelling pot ...
DOI:
10.1016/j.eti.2018.04.005

2. Adsorption of Cu(II) by low cost adsorbents and the cost analysis

Author:
Gupta, Meenal; Gupta, Harsh; Kharat, D.S.
Source:
Environmental technology & innovation 2018 v.10 pp. 91-101
ISSN:
2352-1864
Subject:
Fourier transform infrared spectroscopy; activated carbon; adsorbents; adsorption; copper; cost analysis; environmental technology; industrial effluents; pH; scanning electron microscopes; scanning electron microscopy; sugarcane bagasse; ultraviolet-visible spectroscopy
Abstract:
... The present research is investigated on the adsorption potential of sugarcane bagasse (SG), acid modified sugarcane bagasse (ASG), base modified sugarcane bagasse (BSG) and activated carbon (AC) as adsorbents for the removal of Cu(II) from synthetic effluent and industrial wastewater in a batch mode process. The surface morphology and surface functionality of the adsorbents were identified by usin ...
DOI:
10.1016/j.eti.2018.02.003

3. Assessment of rainstorm induced sediment deposition, gully development at Ikot Ekpene, Nigeria and the devastating effect on the environment

Author:
Onyelowe, Kennedy C.; Bui Van, Duc; Ikpemo, Ogechi C.; Ubachukwu, Obiekwe A.; Van Nguyen, Manh
Source:
Environmental technology & innovation 2018 v.10 pp. 194-207
ISSN:
2352-1864
Subject:
business enterprises; cities; energy; environmental technology; equations; rain intensity; roads; runoff; sediment deposition; soil erosion; storms; watersheds; Nigeria
Abstract:
... This work focused on the assessment of rainstorm induced sediment deposition, gully development and the devastating effect on Ikot Ekpene watershed through the observation and measurement of rainstorm events and the physical parameters; rainstorm intensity, flow velocity, flow duration, kinetic energy of the storm, runoff flow discharge, etc. which are variables of soil erosion. This was carried o ...
DOI:
10.1016/j.eti.2018.02.008

4. Assessment on removal efficiency of chromium by the isolated manglicolous fungi from Indian Sundarban mangrove forest: Removal and optimization using response surface methodology

Author:
Chakraborty, Vijoyeta; Sengupta, Shubhalakshmi; Chaudhuri, Punarbasu; Das, Papita
Source:
Environmental technology & innovation 2018 v.10 pp. 335-344
ISSN:
2352-1864
Subject:
Aspergillus; aqueous solutions; chromium; computer software; effluents; environmental technology; fungi; heavy metals; industry; inoculum; mangrove forests; pH; pollution; response surface methodology; soil; temperature; India
Abstract:
... The use of heavy metals in industries has increased recently. The effluents discharged from these industries are causing pollution on the surrounding environment and also causes wide spread damage. Fungi being an efficient mycosystem can treat these heavy metals successfully. In this study, Aspergillus sp. was isolated from soil from the Sunderban mangrove forest, West Bengal and was used in remov ...
DOI:
10.1016/j.eti.2018.04.007

5. Bentonite coated with magnetite Fe3O4 nanoparticles as a novel adsorbent for copper (II) ions removal from water/wastewater

Author:
Mohammed, Ahmed A.; Samaka, Isra’a S.
Source:
Environmental technology & innovation 2018 v.10 pp. 162-174
ISSN:
2352-1864
Subject:
adsorbents; adsorption; bentonite; coatings; copper; environmental technology; ions; magnetite; models; nanoparticles; pH; porous media; sorption isotherms; surface area; topography; wastewater
Abstract:
... In the present work, the natural bentonite (NB) coated with synthesized Fe3O4 magnetite nanoparticles (CB) was firstly used as an adsorbent to sequester Cu(II) ions from the polluted solutions. The characterization study demonstrated a substantial improvement in several adsorptive parameters of NB after coating, like surface area, surface morphology and topography. From the analysis of the pore di ...
DOI:
10.1016/j.eti.2018.02.005

6. Bioaccumulative activity of Ludwigia peploides on heavy metals-contaminated water

Author:
Salawu, Musa Oyewole; Sunday, Esther Timilehin; Oloyede, Hussein Oyelola Bukoye
Source:
Environmental technology & innovation 2018 v.10 pp. 324-334
ISSN:
2352-1864
Subject:
Ludwigia peploides; bioaccumulation factor; bioremediation; cadmium; catalase; chlorophyll; chromium; copper; copper sulfate; heavy metals; lead; leaves; proximate composition; rivers; roots; soil pollution; superoxide dismutase; water pollution; zinc; zinc sulfate
Abstract:
... Heavy metal pollution of soil and water has become a serious environmental problem in recent decades. This study was carried out to investigate the Ludwigia peploides bioremediation activity against heavy metals-contaminated water. The plant Ludwigia peploides was collected from Asa River, in Ilorin Kwara State, alongside with the water sample. The pond water collected was distributed into six (6) ...
DOI:
10.1016/j.eti.2018.04.001

7. Biosurfactant and exopolysaccharide-assisted rhizobacterial technique for the remediation of heavy metal contaminated soil: An advancement in metal phytoremediation technology

Author:
Lal, Shatrohan; Ratna, Sheel; Said, Olfa Ben; Kumar, Rajesh
Source:
Environmental technology & innovation 2018 v.10 pp. 243-263
ISSN:
2352-1864
Subject:
biosphere; biosurfactants; cost effectiveness; environmental technology; exopolysaccharides; heavy metals; phytoremediation; plant growth; plant growth-promoting rhizobacteria; pollutants; polluted soils; rhizosphere bacteria; socioeconomics; toxicity
Abstract:
... Biosurfactant and exopolysaccharide producing plant growth promoting rhizobacteria can be a best tool for increasing the efficiency of plant assisted remediation of heavy metal contaminated soil; because they can thrive in the stressful environment in a luxuriant way, support plant growth and also contribute to the remediation process. Heavy metals are a noteworthy environmental pollutant and are ...
DOI:
10.1016/j.eti.2018.02.011

8. Comparison of characterization and adsorption of biochars produced from hydrothermal carbonization and pyrolysis

Author:
Jian, Xiumei; Zhuang, Xiuzheng; Li, Bosong; Xu, Xiwei; Wei, Zebin; Song, Yanpei; Jiang, Enchen
Source:
Environmental technology & innovation 2018 v.10 pp. 27-35
ISSN:
2352-1864
Subject:
adsorbents; adsorption; aqueous solutions; ash content; biochar; carbon; copper; environmental technology; hydrochars; hydrothermal carbonization; iodine; ion exchange; methylene blue; moieties; oxygen; pyrolysis; rice hulls; sorption isotherms; surface area; temperature
Abstract:
... Two types of rice-husk biochars, hydrothermally produced hydrochar and slow-pyrolysis pyrochar, were produced at different temperatures and were characterized and used as adsorbent material for the removal of methylene blue, iodine, and copper ions from aqueous solution. The characterization results showed that the hydrochars contained higher heating value, volatile matter content, carbon content ...
DOI:
10.1016/j.eti.2018.01.004

9. Control of microbial growth in bakery products fortified with polyphenols recovered from olive mill wastewater

Author:
Galanakis, Charis M.; Tsatalas, Philippos; Charalambous, Zina; Galanakis, Ioannis M.
Source:
Environmental technology & innovation 2018 v.10 pp. 1-15
ISSN:
2352-1864
Subject:
Bacillus (bacteria); alpha-tocopherol; anti-infective agents; antimicrobial properties; antioxidants; ascorbic acid; breads; coliform bacteria; cooking; emulsifying; flour; microbial growth; molds (fungi); olives; polyphenols; shelf life; wastewater
Abstract:
... Polyphenols recovered from olive mill wastewater and other natural antioxidants [ascorbic acid, tocopherols mixture (α-,β-,γ- and δ-) and α-tocopherol] were mixed in different concentrations with bread and rusks, stored over a period of 20 days and 12 weeks, respectively, and assayed periodically to different microbiological assays (i.e. Total coliforms, Yeasts-Moulds and Bacillus spp.). Antioxida ...
DOI:
10.1016/j.eti.2018.01.006

10. Cultivation of Nannochloropsis oculata and Isochrysis galbana microalgae in produced water for bioremediation and biomass production

Author:
Ammar, Saad H.; Khadim, Hussein J.; Mohamed, Ahmed Isam
Source:
Environmental technology & innovation 2018 v.10 pp. 132-142
ISSN:
2352-1864
Subject:
Isochrysis galbana; Nannochloropsis; biomass production; bioremediation; chemical oxygen demand; culture media; environmental technology; lipid content; microalgae; oil fields; oils; wastewater treatment
Abstract:
... This work investigates the viability of growing two microalgae species Nannochloropsis oculata and Isochrysis galbana in culture medium containing oilfield produced water (PW) for simultaneous wastewater treatment and biomass production. Several batch experiments were conducted using different effluent loadings (10 to 50 %) of PW with modified BG-11 medium. The effect of PW effluent loadings on oi ...
DOI:
10.1016/j.eti.2018.02.002

11. Determination of N-nitrosamines in water by nano iron-porphyrinated poly(amidoamine) dendrimer MCM-41 generation-3 through solid phase membrane tip extraction and HPLC

Author:
Chong, Mun Hwa; Sanagi, Mohd Marsin; Endud, Salasiah; Ibrahim, Wan Aini Wan; Lau, Su Chien; Alharbi, Omar M.L.; Ali, Imran
Source:
Environmental technology & innovation 2018 v.10 pp. 102-110
ISSN:
2352-1864
Subject:
adsorbents; dendrimers; detection limit; gas emissions; green chemistry; high performance liquid chromatography; hospitals; lakes; nitrosamines; solvents; statistical analysis; tap water
Abstract:
... This study described a method comprising solid-phase membrane tip extraction (SPMTE) with nano iron-porphyrinated poly(amidoamine) dendrimer Mobil Composition Matter-41 Generation-3 (FeP-Dend-MCM-41-G3) and high-performance liquid chromatography for analysis of N-nitrosamines in water samples (tap, lake, and hospital water). The studied carcinogenic nitrosamines were N-nitrosopyrrolidine (NPYR), N ...
DOI:
10.1016/j.eti.2018.02.004

12. Diatom assemblage in the 24 cm upper sediment associated with human activities in Lake Warna Dieng Plateau Indonesia

Author:
Soeprobowati, Tri Retnaningsih; Suedy, Sri Widodo Agung; Hadiyanto,; Lubis, Ali Arman; Gell, Peter
Source:
Environmental technology & innovation 2018 v.10 pp. 314-323
ISSN:
2352-1864
Subject:
Aulacoseira; Frustulia; Pinnularia; Stauroneis; anthropogenic activities; cell walls; eutrophication; lakes; lead; microalgae; radiometry; radionuclides; sediments; urban development; water quality; watersheds; Indonesia; Nepal
Abstract:
... Lake Warna is a small shallow crater lake on the Dieng Plateau, Central Java, the second highest plateau in the world after Nepal. A 24 cm sediment core was extracted from Lake Warna to reconstruct environmental changes in the Lake and its catchment from preserved diatom assemblages. Diatoms are microalgae in the Bacillariophyte that have silicious cell walls that can be preserved in sediments. As ...
DOI:
10.1016/j.eti.2018.03.007

13. Effect of extraction conditions on citrate-mediated phosphorus removal and recovery from intercepted particulate runoff

Author:
Shields, Shaun; Mondala, Andro; Gaviglio, Katie
Source:
Environmental technology & innovation 2018 v.10 pp. 305-313
ISSN:
2352-1864
Subject:
citrates; citric acid; environmental technology; food security; fungi; oxalates; pH; phosphates; phosphorus; pollution load; sediment yield; sediments; solubilization; stormwater; streams
Abstract:
... Phosphorus (P) is a nonrenewable mineral resource that is critical to achieving food security for the growing world population. However, nearly half of total annual mined P is lost through nonpoint particulate runoff streams. Previously, we demonstrated inorganic phosphate extraction from runoff particulate mineral phases using P-solubilizing fungi (PSF) generating the organic acids citrate and ox ...
DOI:
10.1016/j.eti.2018.04.002

14. Effect of feed source and pyrolysis conditions on properties and metal sorption by sugarcane biochar

Author:
Hass, Amir; Lima, Isabel M.
Source:
Environmental technology & innovation 2018 v.10 pp. 16-26
ISSN:
2352-1864
Subject:
ash content; biochar; biomass; cadmium; copper; feedstocks; lead; pyrolysis; sorption; steam; sugarcane; sugarcane bagasse; sulfur; surface area; temperature; washing
Abstract:
... Sugarcane biomass from different feed sources of sugar mill operation were used in producing biochar at different temperatures (350, 500, 650, and 800 °C) with/out steam activation at 800 °C. Feed sources included fresh cane-trash, fresh bagasse, and old bagasse collected from a pile left outside the plant for several years. Biochar yield and composition were determined and metal sorption capacity ...
DOI:
10.1016/j.eti.2018.01.007

15. Effect of surface-tailored biocompatible organoclay on the bioavailability and mineralization of polycyclic aromatic hydrocarbons in long-term contaminated soil

Author:
Biswas, Bhabananda; Sarkar, Binoy; Faustorilla, Maria Vilma; Naidu, Ravi
Source:
Environmental technology & innovation 2018 v.10 pp. 152-161
ISSN:
2352-1864
Subject:
adsorption; bentonite; bioavailability; biodegradation; cadmium; carbon; environmental technology; isotope labeling; microbial growth; mineralization; molecular weight; phenanthrenes; polluted soils; radionuclides; soil solution; viability
Abstract:
... A surface-tailored organoclay (palmitic acid-tailored Arquad®-modified bentonite, ABP) was prepared for the selective adsorption of cadmium in the presence of polycyclic aromatic hydrocarbon (PAH) contaminants in a long-term contaminated soil. The efficiency of the organoclay (ABP) and the effect of its parent clays were assessed concerning the microbial viability, metal immobilization and PAHs bi ...
DOI:
10.1016/j.eti.2018.01.013

16. Enterobacter ludwigii strain IF2SW-B4 isolated for bio-hydrogen production from rice bran and de-oiled rice bran

Author:
Tandon, Mona; Thakur, Veena; Tiwari, Kishan Lal; Jadhav, Shailesh Kumar
Source:
Environmental technology & innovation 2018 v.10 pp. 345-354
ISSN:
2352-1864
Subject:
Enterobacter; bacteria; biomass; hydrogen; hydrogen production; industry; oils; pH; ribosomal RNA; rice bran; screening; sequence analysis; temperature; wastes
Abstract:
... This research is aimed to study fermentative bio-hydrogen producing bacteria isolated from rice bran (RB) and de-oiled rice bran (DORB) wastes of oil extracting industry where RB used as renewable biomass. Therefore, the present research was carried out to isolate different bacterial species from RB and DORB wastes and their along with microscopic and biochemical characterization. Secondary screen ...
DOI:
10.1016/j.eti.2018.03.008

17. Estimating transverse dispersivity based on hydraulic conductivity

Author:
Carey, Grant R.; McBean, Edward A.; Feenstra, Stan
Source:
Environmental technology & innovation 2018 v.10 pp. 36-45
ISSN:
2352-1864
Subject:
case studies; environmental technology; equations; groundwater; hydraulic conductivity; models; nonaqueous phase liquids
Abstract:
... The modeling of depletion timeframe for a non-aqueous phase liquid (NAPL) layer is partially dependent on transverse vertical dispersivity. This paper provides guidance for estimating this parameter over the wide range of soil textures in which NAPL resides at contaminated sites. Transverse dispersivity is re-calculated for several previous NAPL dissolution studies based on a consistent methodolog ...
DOI:
10.1016/j.eti.2018.01.008

18. Kinetics and thermodynamics of phenanthrene adsorption from water on orange rind activated carbon

Author:
Gupta, Himanshu; Singh, Santosh
Source:
Environmental technology & innovation 2018 v.10 pp. 208-214
ISSN:
2352-1864
Subject:
activated carbon; adsorption; environmental technology; models; orange peels; phenanthrenes; pollutants; sorption isotherms; thermodynamics
Abstract:
... The present study investigates the kinetics and thermodynamic behaviour of a typical polycyclic aromatic hydrocarbon, phenanthrene, for the adsorption onto activated carbon developed by orange rind. Polycyclic aromatic hydrocarbon (PAHs) is an ubiquitous and hazardous category of environmental pollutants. Various industrial as well as household activities play a major role in their deposition in t ...
DOI:
10.1016/j.eti.2018.03.001

19. Microbially assisted arsenic removal using Acidothiobacillus ferrooxidans mediated by iron oxidation

Author:
Kamde, Kalyani; Pandey, R.A.; Thul, Sanjog T.; Dahake, Rashmi; Shinde, Vilas M.; Bansiwal, Amit
Source:
Environmental technology & innovation 2018 v.10 pp. 78-90
ISSN:
2352-1864
Subject:
X-ray diffraction; analysis of variance; arsenates; arsenic; arsenites; bacteria; culture flasks; culture media; filtration; ions; iron; oxidation; pH; scanning electron microscopy; temperature; wastewater
Abstract:
... The aim of this investigation was to determine the efficiency of arsenic removal present in acidic water using the biochemical method in presence of Acidothiobacillus ferrooxidans bacteria and ferrous ions. The process includes the bio-oxidation of ferrous to ferric by bacteria with simultaneous conversion of arsenite to arsenate and its removal by chemical method. The experiments were carried out ...
DOI:
10.1016/j.eti.2018.01.010

20. Milkweed seedlings tolerance against water stress: Comparison of inoculations with Rhizophagus irregularis and Pseudomonas putida

Author:
Bahmani, Mohammad; Naghdi, Reza; Kartoolinejad, Davoud
Source:
Environmental technology & innovation 2018 v.10 pp. 111-121
ISSN:
2352-1864
Subject:
Calotropis procera; Pseudomonas putida; Rhizophagus intraradices; Rhizophagus irregularis; antioxidants; ascorbate peroxidase; catalase; environmental technology; enzyme activity; greenhouse experimentation; mycorrhizae; mycorrhizal fungi; peroxidase; rhizosphere bacteria; seedlings; superoxide dismutase; water stress
Abstract:
... This study aimed to investigate the concentration of nutritive elements as well as the antioxidant activity of enzymes such as catalase, superoxide dismutase, ascorbate, and peroxidase in Calotropis procera Ait. inoculated by soil-borne microbes, e.g., mycorrhizal fungus and growth-promoting bacteria, under drought stress in greenhouse conditions. Experiments were conducted at three inoculation le ...
DOI:
10.1016/j.eti.2018.01.001