PubAg

Main content area

You searched for: Subject "hulls" Remove constraint Subject: "hulls"
Start Over

Search

4,019  Search Results

« Previous | 1 - 20 of 4,019 |
Number of results to display per page

Search Results

1. Production and characterization of fuel pellets from rice husk and wheat straw

Author:
Ríos-Badrán, Inés M.; Luzardo-Ocampo, Iván; García-Trejo, Juan Fernando; Santos-Cruz, José; Gutiérrez-Antonio, Claudia
Source:
Renewable energy 2020 v.145 pp. 500-507
ISSN:
0960-1481
Subject:
rice hulls,   etc   ; ash content; biofuels; combustion; durability; manufacturing; nitrogen content; pellets; wheat straw;     Show all 9 Subjects
Abstract:
... In this work, the production and characterization of pellets made from rice husks and wheat straws is presented. For this, physicochemical and energetic characterization of pellets produced with rice husks and mixtures of rice husks with wheat straws were carried out, followed by a comparison with those properties stablished by the ISO 17225-6 standard. The rice husk pellets exhibited the lowest c ...
DOI:
10.1016/j.renene.2019.06.048

2. The effect of ZnCl₂ activation on microwave absorbing performance in walnut shell-derived nano-porous carbon

Author:
Wang, Lixi; Zhou, Panpan; Guo, Yu; Zhang, Jing; Qiu, Xu; Guan, Yongkang; Yu, Mingxun; Zhu, Hongli; Zhang, Qitu
Source:
RSC advances 2019 v.9 no.17 pp. 9718-9728
ISSN:
2046-2069
Subject:
walnut hulls,   etc   ; carbon; walnuts; zinc chloride;     Show all 4 Subjects
Abstract:
... Porous carbon has been expected to be a potential candidate as a lightweight and efficient microwave absorber. Nano-porous carbon carbonized directly from a walnut shell exhibits narrow microwave absorption frequency bandwidth, while the activation process can adjust the pore structure and optimize the microwave absorption performance. Herein, porous carbon materials were successfully prepared usi ...
DOI:
10.1039/c8ra09932d

3. Adsorption of Lead on Lentil Husk in Fixed Bed Column Bioreactor

Author:
Basu, Mousumi; Guha, Arun K.; Ray, Lalitagauri
Source:
Bioresource technology 2019 v.283 pp. 86-95
ISSN:
0960-8524
Subject:
hulls,   etc   ; adsorption; bioreactors; industrial effluents; lead; lentils; models; sorbents;     Show all 8 Subjects
Abstract:
... This study depicts successful employment of fixed bed column bioreactor for adsorption of lead in continuous mode using lentil husk as sorbent. Design parameters considerably controlled the reactor performance, amongst which height of the fixed bed and flow rate were crucial in generating cleaner effluent. Adsorption capacity was found to shoot up to the level of 205.87 mg g−1 at 10 cm bed height, ...
DOI:
10.1016/j.biortech.2019.02.133

4. Sustainable lignin to enhance asphalt binder oxidative aging properties and mix properties

Author:
Arafat, Shams; Kumar, Narendra; Wasiuddin, Nazimuddin M.; Owhe, Ekugbere O.; Lynam, Joan G.
Source:
Journal of cleaner production 2019 v.217 pp. 456-468
ISSN:
0959-6526
Subject:
rice hulls,   etc   ; bitumen; cracking; lignin; petroleum; solvents; temperature; waste liquors;     Show all 8 Subjects
Abstract:
... Using sustainable, renewable substances that can be locally-sourced instead of petroleum-based asphalt binders would be better for our environment. Replacing a small portion (maximum of 6%) of asphalt binder with three different types of lignin was investigated to determine its effects on aged and unaged asphalt binder and mix. Commercially available Kraft lignin, lignin precipitated from black li ...
DOI:
10.1016/j.jclepro.2019.01.238

5. The porous structure effects of skeleton builders in sustainable sludge dewatering process

Author:
Zhang, Xiaochun; Kang, Huashan; Zhang, Qingrui; Hao, Xiaoming; Han, Xin; Zhang, Wen; Jiao, Tifeng
Source:
Journal of environmental management 2019 v.230 pp. 14-20
ISSN:
0301-4797
Subject:
rice hulls,   etc   ; coal; dewatering; pipe drainage; sawdust; sludge;     Show all 6 Subjects
Abstract:
... Dewatering from sludge is an important sustainable issue in recent years, in this work, we found the unique behavior: Skeleton builder additions can improve the dewatering performance greatly, which related to the different pore structure of skeleton builder. As compared to the coal ash, sawdust and rice husk char are easier to construct porous channels in the sludge body, which is responsible for ...
DOI:
10.1016/j.jenvman.2018.09.049

6. Does grouping environmental enrichments together affect the way they are used by commercially housed broiler chickens?

Author:
Baxter, Mary; O’Connell, Niamh E.
Source:
Applied animal behaviour science 2019 v.210 pp. 52-59
ISSN:
0168-1591
Subject:
oat hulls,   etc   ; bales; broiler chickens; farms; pecking; straw;     Show all 6 Subjects
Abstract:
... Identifying the most attractive ways of presenting environmental enrichments in commercial broiler housing may encourage use and optimise their effectiveness. This study investigated the effect of grouping straw bales (SB), oat hulls (OH; as a dustbathing substrate) and pecking chain (Pe) together, compared to providing individual enrichments, on level of enrichment use and the behaviour of proxim ...
DOI:
10.1016/j.applanim.2018.10.017

7. Commentary to: a cross-validation-based approach for delimiting reliable home range estimates

Author:
Dougherty, Eric R.; de Valpine, Perry; Carlson, Colin J.; Blackburn, Jason K.; Getz, Wayne M.
Source:
Movement ecology 2018 v.6 no.1 pp. 10
ISSN:
2051-3933
Subject:
hulls,   etc   ; home range; prediction; probability; probability distribution;     Show all 5 Subjects
Abstract:
... BACKGROUND: Continued exploration of the performance of the recently proposed cross-validation-based approach for delimiting home ranges using the Time Local Convex Hull (T-LoCoH) method has revealed a number of issues with the original formulation. MAIN TEXT: Here we replace the ad hoc cross-validation score with a new formulation based on the total log probability of out-of-sample predictions. T ...
DOI:
10.1186/s40462-018-0128-2

8. Correction to: Composition of unfermented, unroasted, roasted cocoa beans and cocoa shells from Peninsular Malaysia

Author:
Agus, Baizura Aya Putri; Mohamad, Nurul Nadzirah; Hussain, Norhayati
Source:
Journal of food measurement & characterization 2018 v.12 no.4 pp. 2590
ISSN:
2193-4126
Subject:
cocoa hulls,   etc   ; chemical composition; cocoa beans; Malaysia;     Show all 4 Subjects
Abstract:
... The original version of this article unfortunately contained an error in Fig. 1. Corrected version of Fig. 1 is given below. ...
DOI:
10.1007/s11694-018-9923-0

9. Quantitative analysis of aqueous phases of bio-oils resulting from pyrolysis of different biomasses by two-dimensional comprehensive liquid chromatography

Author:
Lazzari, Eliane; Arena, Katia; Caramão, Elina B.; Herrero, Miguel
Source:
Journal of chromatography 2019 v.1602 pp. 359-367
ISSN:
0021-9673
Subject:
peanut hulls; rice hulls,   etc   ; Eucalyptus; biofuels; byproducts; circular economy; comprehensive two-dimensional liquid chromatography; liquids; peaches; pyrolysis; quantitative analysis; sawdust; wastes;     Show all 13 Subjects
Abstract:
... Agrifood by-products are perfect candidates to be further processed under the concept of circular economy, in order to produce their valorization. Although significant amounts of food-related wastes that are discarded are produced worldwide, these might still be rich in valuable compounds. A strategy to further valorize agrifood-related by-products is based on pyrolysis processes. The result of th ...
DOI:
10.1016/j.chroma.2019.06.016

10. Mineral profile exploratory analysis for rice grains traceability

Author:
Lange, Camila Neves; Monteiro, Lucilena Rebelo; Freire, Bruna Moreira; Franco, Daniel Fernandez; de Souza, Rogerio Oliveira; dos Reis Ferreira, Cecilia Sacramento; da Silva, Julio José Centeno; Batista, Bruno Lemos
Source:
Food chemistry 2019 v.300 pp. 125145
ISSN:
0308-8146
Subject:
hulls,   etc   ; arsenic; cities; crop management; models; principal component analysis; rice; soil; soil composition; traceability;     Show all 10 Subjects
Abstract:
... Rice geographical traceability requires analytical procedures and data evaluation capable of linking its composition to the producing area. In this work, major and trace elements in soil and rice grains and husk from 9 cities and 17 producers were evaluated. Arsenic species were measured solely in rice grains. The rice mineral profile evaluated by principal component analysis allowed the identific ...
DOI:
10.1016/j.foodchem.2019.125145

11. Process synthesis for coffee husks to energy using hierarchical approaches

Author:
Dal-Bó, Vanessa; Lira, Taisa; Arrieche, Leonardo; Bacelos, Marcelo
Source:
Renewable energy 2019 v.142 pp. 195-206
ISSN:
0960-1481
Subject:
hulls,   etc   ; Coffea canephora; biomass; coffee beans; drying; electric power; energy conversion; pyrolysis; renewable energy sources; wastes;     Show all 10 Subjects
Abstract:
... The aim of this research was to optimize technological applications of biomass waste to obtain energy using both the heuristic and the evolutionary methods. Six steps for the generation of energy were studied with the option of energy integration in the drying and chemical reaction sub-systems. The waste used was the husks of Robusta coffee beans resulting from two distinct treatments, the wet and ...
DOI:
10.1016/j.renene.2019.04.089

12. Interaction with low molecular weight organic acids affects the electron shuttling of biochar for Cr(VI) reduction

Author:
Xu, Zibo; Xu, Xiaoyun; Tao, Xinyi; Yao, Chengbo; Tsang, Daniel C.W.; Cao, Xinde
Source:
Journal of hazardous materials 2019 v.378 pp. 120705
ISSN:
0304-3894
Subject:
peanut hulls,   etc   ; biochar; chromium; electron transfer; electrons; moieties; molecular weight; oxalic acid; soil; sorption; tartaric acid;     Show all 11 Subjects
Abstract:
... Biochar can act as “electron shuttle” in soil redox reactions. It is possible that biochar accepts the electrons from low molecular weight organic acids (LMWOAs) in soil and then transfer them to the acceptors, e.g., Cr(VI). This study evaluated the interaction between seven soil LMWOAs and peanut shell biochar (BC) as well as its effect on the electron shuttling of biochar for Cr(VI) reduction. B ...
DOI:
10.1016/j.jhazmat.2019.05.098

13. Effects of moisture content, temperature, and die thickness on the compaction process, and the density and strength of walnut shell pellets

Author:
Lisowski, Aleksander; Pajor, Małgorzata; Świętochowski, Adam; Dąbrowska, Magdalena; Klonowski, Jacek; Mieszkalski, Leszek; Ekielski, Adam; Stasiak, Mateusz; Piątek, Michał
Source:
Renewable energy 2019 v.141 pp. 770-781
ISSN:
0960-1481
Subject:
walnut hulls,   etc   ; compression strength; friction; pellets; renewable energy sources; spectral analysis; temperature; vibration; water content;     Show all 9 Subjects
Abstract:
... Compaction of milled walnut shells was carried out at moisture contents of 11.3, 18.3, and 25.3% w.b., material temperatures of 93 °C and 106 °C, agglomerate lengths, la, of 40, 50, 60, 70, and 80 mm and a speed of 100 mm min−1. The phenomenon of friction vibrations occurred at the moisture level of 11.3% w.b. when moving the pellets in die. At a higher temperature of 106 vs. 93 °C the frequencies ...
DOI:
10.1016/j.renene.2019.04.050

14. Biochar and ash derived from silicon-rich rice husk decrease inorganic arsenic species in rice grain

Author:
Leksungnoen, Parapond; Wisawapipat, Worachart; Ketrot, Daojarus; Aramrak, Surachet; Nookabkaew, Sumontha; Rangkadilok, Nuchanart; Satayavivad, Jutamaad
Source:
The Science of the total environment 2019 v.684 pp. 360-370
ISSN:
0048-9697
Subject:
rice hulls,   etc   ; arsenic; biochar; husk ash; iron oxides; manganese oxides; paddy soils; recycling; rice; soil solution;     Show all 10 Subjects
Abstract:
... Exposure to arsenic (As) through rice consumption potentially threatens millions of people worldwide. Understanding is still lacking the recycling impacts of rice residues on As phytoavailability in paddy soils and is of indisputable importance in providing a sustainable and effective measure to decrease As accumulation in rice grain. Herein, we examined the effects of rice husk biochar (RHB) and ...
DOI:
10.1016/j.scitotenv.2019.05.247

15. Recent advances on pollutants removal by rice husk as a bio-based adsorbent: A critical review

Author:
Shamsollahi, Zahra; Partovinia, Ali
Source:
Journal of environmental management 2019 v.246 pp. 314-323
ISSN:
0301-4797
Subject:
rice hulls,   etc   ; adsorbents; adsorption; biocatalysts; chemical treatment; heat treatment; pollutants; pollution control; renewable resources; wastewater treatment;     Show all 10 Subjects
Abstract:
... Rice husk is an attractive bio-based adsorbent material for pollutant removal since it is one of the low-cost and renewable resources. The objective of this review is to give a summary of the key scientific features related to pollutants removal using rice husk, with a specific emphasis on the effect of factors on adsorption capacity of rice husk. According to the results, rice husk has the remova ...
DOI:
10.1016/j.jenvman.2019.05.145

16. Expression of the nirS, hzsA, and hdh genes and antibiotic resistance genes in response to recovery of anammox process inhibited by oxytetracycline

Author:
Zhang, Qian-Qian; Zhao, Yi-Heng; Wang, Cheng-Jie; Bai, Yu-Hui; Wu, Dan; Wu, Jing; Tian, Guang-Ming; Shi, Man-Ling; Mahmood, Qaisar; Jin, Ren-Cun
Source:
The Science of the total environment 2019 v.681 pp. 56-65
ISSN:
0048-9697
Subject:
hulls,   etc   ; anaerobic ammonium oxidation; antibiotic resistance genes; bioaugmentation; heme; oxytetracycline; polymers; protein content; ribosomal RNA; sludge;     Show all 10 Subjects
Abstract:
... The inhibitory effects of oxytetracycline (OTC) on the anaerobic ammonium oxidation (anammox) performance were relieved by employing bio-augmentation (BA) tactics. However, the recovery mechanism was vague. The response of specific anammox activity (SAA), heme c, functional genes, extracellular polymeric substance (EPS) and antibiotics resistance genes (ARGs) to OTC inhibition and BA aid were trac ...
DOI:
10.1016/j.scitotenv.2019.04.438

17. Nano-mechanical behaviour of biochar-starch polymer composite: Investigation through advanced dynamic atomic force microscopy

Author:
George, Justin; Azad, Lal B.; Poulose, Anesh M.; An, Yiran; Sarmah, Ajit K.
Source:
Composites 2019 v.124 pp. 105486
ISSN:
1359-835X
Subject:
rice hulls,   etc   ; atomic force microscopy; biochar; composite materials; modulus of elasticity; moieties; polymers; starch; viscoelasticity;     Show all 9 Subjects
Abstract:
... We investigated the nano-mechanical behaviour of rice husk biochar (RHBC)/starch polymer composite using the amplitude modulation-frequency modulation (AM-FM) mode available within the atomic force microscopy. The interaction of biochar with the starch matrix in the interfacial region, the surface morphology and viscoelastic properties of the composite were studied through AM-FM mapping. The Young ...
DOI:
10.1016/j.compositesa.2019.105486

18. Pilot-scale composting of typical multiple agricultural wastes: Parameter optimization and mechanisms

Author:
Bian, Bo; Hu, Xiuren; Zhang, Shaopeng; Lv, Chengxu; Yang, Zhen; Yang, Weiben; Zhang, Limin
Source:
Bioresource technology 2019 v.287 pp. 121482
ISSN:
0960-8524
Subject:
rice hulls,   etc   ; carbon; carbon nitrogen ratio; composting; composts; leaves; organic matter; particle size; poultry manure; vegetables;     Show all 10 Subjects
Abstract:
... In this work, pilot-scale (100 kg of mixed wastes each time) composting of typical agricultural wastes, including chicken manure, vegetable leaves and rice husks with a mass ratio of 6:3:1, was studied. Effects of thermal phases and transformation time on performance, including moisture, nutrient, and carbon contents and C/N ratios of compost, were investigated. The optimal parameters were 75 ± 5  ...
DOI:
10.1016/j.biortech.2019.121482

19. Microwave dielectric properties and thermochemical characteristics of the mixtures of walnut shell and manganese ore

Author:
Li, Kangqiang; Chen, Jin; Chen, Guo; Peng, Jinhui; Ruan, Roger; Srinivasakannan, C.
Source:
Bioresource technology 2019 v.286 pp. 121381
ISSN:
0960-8524
Subject:
walnut hulls,   etc   ; biomass; dielectric properties; manganese; manganese dioxide; microwave treatment; mixing ratio; pyrolysis; temperature;     Show all 9 Subjects
Abstract:
... In this work, dielectric properties and thermochemical characteristics of mixtures of walnut shell and manganese ore were systematically investigated. Results indicated that reducing manganese ore by walnut shell was divided into four stages identified by temperatures: <150 °C, 150 °C–300 °C, 300 °C–480 °C, greater than 480 °C. Higher than 200 °C, the dielectric constants (εr′), dielectric loss fa ...
DOI:
10.1016/j.biortech.2019.121381

20. Study on the effect of condensing temperature of walnut shells pyrolysis vapors on the composition and properties of bio-oil

Author:
Wang, Chu; Luo, Zejun; Diao, Rui; Zhu, Xifeng
Source:
Bioresource technology 2019 v.285 pp. 121370
ISSN:
0960-8524
Subject:
walnut hulls,   etc   ; acetic acid; biofuels; condensation (phase transition); furfural; guaiacol; pyrolysis; temperature; vapors;     Show all 9 Subjects
Abstract:
... The effect of condensing temperature on composition of bio-oil obtained via fractional condensation was investigated by pyrolysis-condensation experiments of walnut shells at condensing temperatures from 290 K to 370 K. The condensing efficiency of the first stage condenser decreased from 0.59 to 0.12 with increasing temperature. Moisture of bio-oil decreased from 40% to 5%, but the C/O ratio incr ...
DOI:
10.1016/j.biortech.2019.121370