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You searched for: Publication year rev 7982-2018 Remove constraint Publication year rev: 7982-2018 Subject term calcium Remove constraint Subject term: calcium Subject term biomass Remove constraint Subject term: biomass Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. A New Method for Direct Determination of Char Yield during Solid Fuel Pyrolysis in Drop-Tube Furnace at High Temperature and Its Comparison with Ash Tracer Method

Author:
Sui Boon Liaw; Hongwei Wu
Source:
Energy & fuels 2018 v.33 no.2 pp. 1509-1517
ISSN:
1520-5029
Subject:
aluminum; biochar; biofuels; biomass; calcium; coal; evaporation; furnaces; iron; leaves; magnesium; potassium; pyrolysis; rice hulls; silicon; sodium; temperature; tracer techniques; wood
Abstract:
... A drop-tube furnace with a novel double-tube configuration was successfully developed to directly determine char yields during the pyrolysis of a wide range of solid fuels (mallee wood; mallee leaf; rice husk; biosolid; and subbituminous, bituminous, and anthracite coal) at a gas temperature of 1573 K. The char yield from pyrolysis of mallee wood and mallee leaf is <5%, ∼13% for rice husk, ∼16% fo ...
DOI:
10.1021/acs.energyfuels.8b03161

2. A Sodium Transporter HvHKT1;1 Confers Salt Tolerance in Barley via Regulating Tissue and Cell Ion Homeostasis

Author:
Yong Han; Shuya Yin; Lu Huang; Xuelong Wu; Jianbin Zeng; Xiaohui Liu; Long Qiu; Rana Munns; Zhong-Hua Chen; Guoping Zhang
Source:
Plant & cell physiology 2018 v.59 no.10 pp. 1976-1989
ISSN:
1471-9053
Subject:
Arabidopsis; Hordeum vulgare; Saccharomyces cerevisiae; Xenopus laevis; barley; biomass; calcium; cations; genotype; heterologous gene expression; homeostasis; leaves; loss-of-function mutation; messenger RNA; oocytes; plant root cells; plasma membrane; potassium; protons; root growth; roots; salt stress; salt tolerance; shoots; sodium; stele; transgenic plants; transporters; yeasts
Abstract:
... Our previous studies showed that high salt tolerance in Tibetan wild barley accessions was associated with HvHKT1;1, a member of the high-affinity potassium transporter family. However, molecular mechanisms of HvHKT1;1 for salt tolerance and its roles in K⁺/Na⁺ homeostasis remain to be elucidated. Functional characterization of HvHKT1;1 was conducted in the present study. NaCl-induced transcripts ...
DOI:
10.1093/pcp/pcy116

3. A green synthetic route to phenolics fabricated magnetite nanoparticles from coconut husk extract: Implications to treat metal contaminated water and heavy metal stress in Oryza sativa L.

Author:
Abin Sebastian; Ashwini Nangia; M.N.V. Prasad
Source:
Journal of cleaner production 2018 v.174 pp. 355-366
ISSN:
0959-6526
Subject:
Oryza sativa; adsorption; ambient temperature; biomass; cadmium; calcium; chlorophyll; coir; ferric chloride; heavy metals; hulls; iron; magnetite; mixing; nanoparticles; pH; phenolic compounds; photochemistry; plant growth; remediation; rice; sand; sorption isotherms
Abstract:
... Iron oxide nanoparticles are biocompatible. Therefore these particles are in demand for environmental cleanup. In the present study, semicrystalline magnetite nanoparticles synthesized by mixing equal volume of 10.0 mM ferric chloride solution and coconut husk extract (10.0 g L⁻¹) at room temperature. Phenolics in the husk extract fabricated onto nanoparticles. These particles found to efficiently ...
DOI:
10.1016/j.jclepro.2017.10.343

4. A meta-analysis of experimental warming effects on woody plant growth and photosynthesis in forests

Author:
Yongge Yuan; Litao Ge; Haishui Yang; Weizheng Ren
Source:
Journal of forestry research 2018 v.29 no.3 pp. 727-733
ISSN:
1007-662X
Subject:
biomass; calcium; field experimentation; forests; global warming; leaf area; manganese; meta-analysis; nutrients; photosystem II; plant growth; plant height; temperature; woody plants
Abstract:
... Increasing field experiments have been conducted in forests to better understand the response of plant growth and photosynthesis to climatic warming. However, it is still unknown whether there is a general pattern in relation to how and to what extent warming impacts woody plants in forests. In this study, a meta-analysis was conducted to investigate the warming effects. When temperatures increase ...
DOI:
10.1007/s11676-017-0499-z

5. Adsorption of As (III) and As (V) from aqueous solution by modified Cassia fistula (golden shower) biochar

Author:
Md. Arsh Alam; Wasim Akram Shaikh; Md. Osaid Alam; Tanushree Bhattacharya; Sukalyan Chakraborty; Bibhutibhushan Show; Indranil Saha
Source:
Applied water science 2018 v.8 no.7 pp. 198
ISSN:
2190-5487
Subject:
Cassia fistula; Fourier transform infrared spectroscopy; adsorbents; adsorption; ambient temperature; aqueous solutions; arsenates; arsenic; arsenites; biochar; biomass; biosorbents; biosorption; calcium; energy-dispersive X-ray analysis; ions; iron; leaching; mixing; models; pH; phosphates; scanning electron microscopy; sorption isotherms; thermodynamics
Abstract:
... The biosorption of two Arsenic (As) species [As (III) and As (V)] from aqueous solution onto activated biochar derived from Cassia fistula, belonging to Fabaceae family was studied. SEM/EDX characterization of the adsorbent showed an irregular, porous, and heterogeneous surface morphology with calcium and iron available for As binding. FTIR also showed the presence of groups responsible for As ads ...
DOI:
10.1007/s13201-018-0839-y

6. Alkali enhanced biomass gasification with in situ S capture and novel syngas cleaning. Part 1: Gasifier performance

Author:
Erik Furusjö; Chunyan Ma; Xiaoyan Ji; Lara Carvalho; Joakim Lundgren; Elisabeth Wetterlund
Source:
Energy 2018 v.157 pp. 96-105
ISSN:
0360-5442
Subject:
biofuels; biomass; calcium; catalysts; catalytic activity; cleaning; economic feasibility; feedstocks; gasification; magnesium; melting; recycling; silicon; slags; soot; sulfides; sulfur; synthesis gas; viscosity; zinc
Abstract:
... Previous research shows that alkali addition in entrained flow biomass gasification can increase char conversion and decrease tar and soot formation through catalysis. This paper investigates two other potential benefits of alkali addition: increased slag flowability and in situ sulfur capture.Thermodynamic equilibrium calculations show that addition of 2–8% alkali catalyst to biomass completely c ...
DOI:
10.1016/j.energy.2018.05.097

7. Allometric equations for predicting mineralomass in high-forest chestnut stands in Portugal

Author:
M. S. Patrício; M. Tomé
Source:
Acta horticulturae 2018 v. no.1220 pp. 125-132
ISSN:
0567-7572
Subject:
Castanea sativa; adults; allometry; bark; biomass; branches; calcium; ecosystems; equations; felling; flowers; harvesting; least squares; leaves; magnesium; models; nitrogen; nutrients; phosphorus; potassium; prediction; trees; woodlands; Portugal
Abstract:
... The assessment of nutrients in biomass tree-components is a time-consuming and expensive process, often involving tree felling, not always possible or desirable. Thus, mineralomass prediction equations are an important tool for the quantification of the nutrients exported in management and harvesting activities towards its replacement and sustainable management, as well as to evaluate the effect o ...
DOI:
10.17660/ActaHortic.2018.1220.19

8. Aluminum effects on photosynthesis, reactive oxygen species and methylglyoxal detoxification in two Citrus species differing in aluminum tolerance

Author:
Peng Guo; Yi-Ping Qi; Yan-Tong Cai; Tao-Yu Yang; Lin-Tong Yang; Zeng-Rong Huang; Li-Song Chen; Heinz Rennenberg
Source:
Tree physiology 2018 v.38 no.10 pp. 1548-1565
ISSN:
1758-4469
Subject:
Citrus maxima; Citrus sinensis; aluminum; aluminum chloride; antioxidant enzymes; biomass; calcium; chlorophyll; fluorescence; glutathione; homeostasis; leaves; magnesium; metabolic detoxification; nitrogen; nutrient solutions; oxidation; pH; phosphorus; photosynthesis; pigments; potassium; protein content; reactive oxygen species; roots; seedlings; shoots; soil; sulfur; toxicity; water content
Abstract:
... Citrus are mainly grown in low pH soils with high active aluminum (Al). ‘Xuegan’ (Citrus sinensis (L.) Osbeck) and ‘Shatian pummelo’ (Citrus grandis (L.) Osbeck) seedlings were fertilized for 18 weeks with nutrient solution containing either 0 mM (control) or 1 mM (Al toxicity) AlCl₃·6H₂O. Aluminum induced decreases of biomass, leaf photosynthesis, relative water content and total soluble protein ...
DOI:
10.1093/treephys/tpy035

9. Amino acids in cell wall of Gram-positive bacterium Micrococcus sp. hsn08 with flocculation activity on Chlorella vulgaris biomass

Author:
Yi Li; Yanting Xu; Tianling Zheng; Hailei Wang
Source:
Bioresource technology 2018 v.249 pp. 417-424
ISSN:
0960-8524
Subject:
Chlorella vulgaris; Gram-positive bacteria; Micrococcus; algae culture; amino acids; biomass; calcium; cell walls; flocculation; harvesting; ions; microalgae; peptidoglycans; viability
Abstract:
... The aim of this work was to investigate the flocculation mechanism by Gram-positive bacterium, Micrococcus sp. hsn08 as a means for harvesting Chlorella vulgaris biomass. Bacterial cells of Micrococcus sp. hsn08 were added into algal culture to harvest algal cells through direct contacting with algae to form flocs. Viability dependence test confirmed that flocculation activity does not depend on l ...
DOI:
10.1016/j.biortech.2017.10.056

10. Amount of nutrients extracted and left behind at a clear-felled area using the fresh-stacked and dried-stacked methods of logging residue extraction

Author:
Daniel Nilsson; Bengt Nilsson; Thomas Thörnqvist; Johan Bergh
Source:
Scandinavian journal of forest research 2018 v.33 no.5 pp. 437-445
ISSN:
1651-1891
Subject:
biomass; calcium; clearcutting; forest products; forests; harvesting; logging; magnesium; nutrient content; nutrients; potassium; Sweden
Abstract:
... Nutrient removal has been one of the key issues since the harvesting of logging residues started in Sweden. This study examined the actual removal of nutrients by measuring the amounts of biomass removed (from a forest products perspective) combined with their respective nutrient concentrations (N, P, Ca, K and Mg), from a clear-felled area when using the dried-stacked and fresh-stacked methods. T ...
DOI:
10.1080/02827581.2018.1427786

11. An Experimental Investigation of the Catalytic Activity of Natural Calcium-Rich Minerals and a Novel Dual-Supported CaO–Ca12Al14O33/Al2O3 Catalyst for Biotar Steam Reforming

Author:
Fengkui Yin; Priscilla Tremain; Jianglong Yu; Elham Doroodchi; Behdad Moghtaderi
Source:
Energy & fuels 2018 v.32 no.4 pp. 4269-4277
ISSN:
1520-5029
Subject:
aluminum oxide; analytical methods; biomass; calcium; calcium oxide; carbonation; catalysts; catalytic activity; catalytic cracking; cooling; cracking; dolomite; dust; energy; fuels; gasification; models; nanoparticles; steam; strength (mechanics); surface area; synthesis gas; temperature; toluene; ultrasonic treatment; viability
Abstract:
... Tar removal plays a key role in the process efficiency and viability of biomass gasification for syngas production applications. Among currently available tar treatment technologies, catalytic cracking was found to be the most attractive due to minimal energy losses by avoiding cooling of the raw product gas. Naturally available calcium-based catalysts, particularly stone dust and dolomite, have b ...
DOI:
10.1021/acs.energyfuels.7b03201

12. Analysis of metabolic and nutritional biomarkers in Brassica oleracea L. cv. Bronco plants under alkaline stress

Author:
A. de la Torre-González; D. Montesinos-Pereira; L. Romero; B. Blasco; J. M. Ruiz
Source:
Journal of horticultural science & biotechnology 2018 v.93 no.3 pp. 279-288
ISSN:
2380-4084
Subject:
Brassica oleracea; alkaline soils; alkalinity; antioxidant activity; biochemical pathways; biomarkers; biomass; calcium; carbonate rocks; intensive farming; ions; leaves; magnesium; manganese; nutrient deficiencies; nutrients; photosynthesis; pigments; plant growth; potassium; proline; semiarid zones; sodium; sodium carbonate; superoxide anion; superoxide dismutase; toxicity; water hardness; Spain
Abstract:
... Alkaline stress is caused by accumulation of alkaline salts (such as NaHCO₃ and Na₂CO₃) in the soil. This problem, common in arid and semiarid areas of Spain, results from intensive agriculture, the use of hard water, and cultivation in areas of calcareous rock. The present study examines plant metabolic responses against this stress in Brassica oleracea L. cv. Bronco in order to better understand ...
DOI:
10.1080/14620316.2017.1364979

13. Application of ecofriendly cation exchangers (Gracilaria caudata and Gracilaria cervicornis) for metal ions separation and recovery from a synthetic petrochemical wastewater: Batch and fixed bed studies

Author:
Maria Alice P. Cechinel; Diego A. Mayer; Luciana P. Mazur; Laís G.M. Silva; Alice Girardi; Vítor J.P. Vilar; Antônio Augusto U. de Souza; Selene M.A. Guelli U. de Souza
Source:
Journal of cleaner production 2018 v.172 pp. 1928-1945
ISSN:
0959-6526
Subject:
Gracilaria caudata; algae; biomass; calcium; calcium chloride; cation exchange; cation exchange resins; cations; copper; digestion; hydrochloric acid; ion exchange capacity; mass transfer; metal ions; models; moieties; nickel; nitric acid; sodium chloride; sodium hydroxide; sulfuric acid; wastewater; zinc
Abstract:
... Red macro-algae Gracilaria caudata and Gracilaria cervicornis were used as cation exchangers for transition metals (copper, nickel and zinc) from a synthetic petrochemical wastewater. Scarce information is available in the literature about the use of red algae as natural cation exchanger and the effect of multicomponent aqueous matrix on the treatment performance. In the present work, the transiti ...
DOI:
10.1016/j.jclepro.2017.11.235

14. Arbuscular Mycorrhiza Rhizophagus irregularis and Silicon Modulate Growth, Proline Biosynthesis and Yield in Cajanus cajan L. Millsp. (pigeonpea) Genotypes Under Cadmium and Zinc Stress

Author:
Neera Garg; Sandeep Singh
Source:
Journal of plant growth regulation 2018 v.37 no.1 pp. 46-63
ISSN:
0721-7595
Subject:
Cajanus cajan; Rhizophagus irregularis; biomass; biosynthesis; cadmium; calcium; chlorophyll; enzyme activity; genotype; glutamate dehydrogenase; heavy metals; iron; magnesium; metal tolerance; nitrogen; phosphorus; phytotoxicity; pigeon peas; plant growth; potassium; proline; silicon; soil; vesicular arbuscular mycorrhizae; zinc
Abstract:
... Cd is a non-essential metal and is hazardous for plant growth. Although Zn is regarded as an essential element, its elevated levels are highly toxic for plants. Silicon (Si) fertilization and Arbuscular mycorrhiza (AM) have been recognized in alleviating phytotoxicity of heavy metals. Benefits of Si are limited in legumes because they are low Si accumulators. Recently, reports have indicated incre ...
DOI:
10.1007/s00344-017-9708-4

15. Arbuscular mycorrhiza enhances nutrient accumulation in wheat exposed to elevated CO2 and soil salinity

Author:
Xiancan Zhu; Fengbin Song; Shengqun Liu; Fulai Liu; Xiangnan Li
Source:
Zeitschrift für Pflanzenernährung und Bodenkunde 2018 v.181 no.6 pp. 836-846
ISSN:
1436-8730
Subject:
Rhizophagus irregularis; Triticum aestivum; biomass; calcium; carbon dioxide; carbon dioxide enrichment; glucose; magnesium; mutualism; mycorrhizal fungi; plant growth; potassium; roots; salt stress; shoots; sodium; sodium chloride; soil salinity; vesicular arbuscular mycorrhizae; wheat
Abstract:
... Plant can establish a mutualistic symbiosis with arbuscular mycorrhizal (AM) fungi to improve plant growth and resistance to environmental stresses. The aim of this study was to evaluate the effect of AM on nutrient accumulation of wheat (Triticum aestivum L.) plants under combined elevated CO₂ and soil salinity. The effects of CO₂ elevation (700 ppm) and salt treatments (0, 1, and 2 g NaCl kg⁻¹ d ...
DOI:
10.1002/jpln.201700575

16. Arsenic-induced nutrient uptake in As-hyperaccumulator Pteris vittata and their potential role to enhance plant growth

Author:
Xue Liu; Hua–Yuan Feng; Jing–Wei Fu; Yanshan Chen; Yungen Liu; Lena Q. Ma
Source:
Chemosphere 2018 v.198 pp. 425-431
ISSN:
0045-6535
Subject:
Pteris vittata; agar; arsenic; biomass; calcium; hyperaccumulators; iron; magnesium; manganese; nutrient uptake; plant growth; zinc
Abstract:
... It is known that arsenic (As) promotes growth of As-hyperaccumulator Pteris vittata (PV), however, the associated mechanisms are unclear. Here we examined As-induced nutrient uptake in P. vittata and their potential role to enhance plant growth in sterile agar by excluding microbial effects. As-hyperaccumulator P. multifida (PM) and non-hyperaccumulator P. ensiformis (PE) belonging to the Pteris g ...
DOI:
10.1016/j.chemosphere.2018.01.077

17. Ash deposit formation during the combustion of pulverized grape pomace in a drop tube furnace

Author:
A. Moço; M. Costa; C. Casaca
Source:
Energy conversion and management 2018 v.169 pp. 383-389
ISSN:
0196-8904
Subject:
biomass; calcium; chemical composition; cleaning; combustion; energy-dispersive X-ray analysis; furnaces; grape pomace; magnesium; oxygen; phosphorus; potassium; scanning electron microscopes; silicon; stainless steel; temperature
Abstract:
... This article concentrates on the ash deposit formation during the combustion of pulverized grape pomace in a drop tube furnace. All experiments were conducted for a wall drop tube furnace temperature of 1200 °C. Initially, axial measurements of temperature, major gas species concentrations and particle burnout were obtained for a representative drop tube furnace operating condition. These measurem ...
DOI:
10.1016/j.enconman.2018.05.080

18. Ash fusion characteristics during co-gasification of biomass and petroleum coke

Author:
Qing-an Xiong; Jiazhou Li; Shuai Guo; Guang Li; Jiantao Zhao; Yitian Fang
Source:
Bioresource technology 2018 v.257 pp. 1-6
ISSN:
0960-8524
Subject:
X-ray diffraction; biomass; calcium; calcium silicate; corn stover; gasification; melting point; mixing; petroleum; sawdust; scanning electron microscopy; temperature; vanadium
Abstract:
... In this study, the effect of biomass ash on petroleum coke ash fusibility was investigated at a reducing atmosphere. Some analytical methods, such as ash fusion temperatures (AFTs) analysis, X-ray diffraction (XRD), FactSage and scanning electron microscopy (SEM), were applied to determine the characteristics of ash fusion and transformation of mineral matters. The results indicated that AFTs were ...
DOI:
10.1016/j.biortech.2018.02.037

19. Assessment of selected macroalgae for use in a biological hybrid system for treating sulphur in acid mine drainage (AMD)

Author:
Paul J. Oberholster; Po-Hsun Cheng; Anna-Maria Botha; Philip Hobbs; Liesl Hill
Source:
Journal of applied phycology 2018 v.30 no.2 pp. 1361-1370
ISSN:
0921-8971
Subject:
Klebsormidium; Oedogonium; acid mine drainage; acidity; bioaccumulation; biomass; calcium; constructed wetlands; environmental impact; macroalgae; magnesium; pH; phosphorus; ponds; sulfur; water quality
Abstract:
... Filamentous algae biomass is very limited in aerobic constructed wetlands and totally absent in anaerobic constructed wetlands. Its contribution to the removal of sulphur from acid mine drainage will therefore rarely reach a significant level if not used in association with secondary algae treatment ponds as part of a biological hybrid treatment system. Although a high sulphur concentration has a ...
DOI:
10.1007/s10811-017-1314-0

20. Assessment of trace metal levels in size-resolved particulate matter in the area of Leipzig

Author:
Khanneh Wadinga Fomba; Dominik van Pinxteren; Konrad Müller; Gerald Spindler; Hartmut Herrmann
Source:
Atmospheric environment 2018 v.176 pp. 60-70
ISSN:
1352-2310
Subject:
X-radiation; air; antimony; arsenic; atmospheric chemistry; barium; biomass; burning; calcium; chromium; cobalt; combustion; copper; dust; emissions; fluorescence; iron; lead; manganese; nickel; oils; particulates; potassium; rubidium; strontium; summer; tin; tires; traffic; vanadium; winter; zinc; Germany
Abstract:
... Size-resolved trace metal concentrations at four sites in Leipzig (Germany) and its surrounding were assessed between the winter of 2013 and the summer of 2015. The measurements were performed in parallel at; traffic dominated (Leipzig – Mitte, LMI), traffic and residential dominated (Eisenbahnstrasse, EIB), urban background (TROPOS, TRO) and regional background (Melpitz, MEL) sites. In total, 19 ...
DOI:
10.1016/j.atmosenv.2017.12.024