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1. A study of synthesizing stable super-slip carbon nanotubes by grafting octadecylamine

Author:
Yang, Jun; Song, Haojie; Guo, Zhiguang
Source:
Journal of colloid and interface science 2019 v.540 pp. 126-133
ISSN:
0021-9797
Subject:
acidification,   etc   ; carbon nanotubes; hydrophobicity; moieties;     Show all 4 Subjects
Abstract:
... A stable super-slip material with the electrical conductive property has been synthesized by chemical grafting. The multi-walled carbon nanotubes (MWCNTs) were chosen as the electrical conductive matrix. After the acidification of the mixed acid, the original MWCNTs were oxidized to form carboxyl groups on the surface. The octadecylamine (ODA) was bonded on the acidified MWCNTs with the amidation ...
DOI:
10.1016/j.jcis.2019.01.015

2. Insights into the effects of acidification on sewage sludge dewaterability through pH repeated adjustment

Author:
Wei, Hua; Tang, Yunong; Li, Aimin; Yang, Hu
Source:
Chemosphere 2019 v.227 pp. 269-276
ISSN:
0045-6535
Subject:
acidification,   etc   ; dewatering; pH; polymers; protonation; sewage sludge;     Show all 6 Subjects
Abstract:
... Sludge acidification is a popular and efficient pretreatment method for improving sludge dewaterability. To explore the mechanisms of sludge acidification deeply and provide a theoretical basis for practical application, sewage sludge was repeatedly treated by acidification conditioning. The sludge pH was continuously adjusted from 7.0 to 3.0, then back to 7.0, and to 3.0 again in this study. When ...
DOI:
10.1016/j.chemosphere.2019.04.020

3. Accurate determination of total alkalinity in estuarine waters for acidification studies

Author:
Kortazar, Leire; Milea, Demetrio; Gómez-Laserna, Olivia; Fernández, Luis Angel
Source:
Trends in analytical chemistry 2019 v.114 pp. 69-80
ISSN:
0165-9936
Subject:
acidification; ocean acidification,   etc   ; acidity; alkalinity; brackish water; carbon dioxide; carbonates; estuaries; habitats; salinity; seawater; titration;     Show all 12 Subjects
Abstract:
... One of the effects of the atmospheric CO2 increase is ocean acidification. Over the past 20 years, accurate measurements of the seawater carbonate system have become a high priority because this is the main system controlling seawater acidity. However, this phenomenon has not been widely studied in estuaries, even if they are among the most productive natural habitats in the world, lodging some of ...
DOI:
10.1016/j.trac.2019.01.010

4. Calcium carbonate unit realignment under acidification: A potential compensatory mechanism in an edible estuarine oyster

Author:
Meng, Yuan; Guo, Zhenbin; Yao, Haimin; Yeung, Kelvin W.K.; Thiyagarajan, V.
Source:
Marine pollution bulletin 2019 v.139 pp. 141-149
ISSN:
0025-326X
Subject:
acidification; ocean acidification,   etc   ; calcification; calcium carbonate; crystallography; estuaries; hardness; mechanical properties; minerals; oysters; pH; water pollution;     Show all 12 Subjects
Abstract:
... Ocean acidification (OA) is well-known for impairing marine calcification; however, the end response of several essential species to this perturbation remains unknown. Decreased pH and saturation levels (Ω) of minerals under OA is projected to alter shell crystallography and thus to reduce shell mechanical properties. This study examined this hypothesis using a commercially important estuarine oys ...
DOI:
10.1016/j.marpolbul.2018.12.030

5. Investigation of chlorophyll degradation by tetracycline

Author:
Rydzyński, Dariusz; Piotrowicz-Cieślak, Agnieszka I.; Grajek, Hanna; Wasilewski, Janusz
Source:
Chemosphere 2019 v.229 pp. 409-417
ISSN:
0045-6535
Subject:
acidification,   etc   ; absorbance; chlorophyll; fluorescence; ions; magnesium; pollutants; protons; spectroscopy; tetracycline;     Show all 10 Subjects
Abstract:
... Antibiotics represent a novel type of environment pollutants which modify chlorophyll content in plants. Spectroscopic methods were employed to investigate the effect of tetracycline on chlorophyll degradation. Changes in absorbance and fluorescence demonstrated that tetracycline reaction with chlorophyll results in the formation of pheophytin, which was confirmed by new bands typical of pheophyti ...
DOI:
10.1016/j.chemosphere.2019.05.035

6. Analysis of the relationship of extracellular polymeric substances to the dewaterability and rheological properties of sludge treated by acidification and anaerobic mesophilic digestion

Author:
Zhang, Siwei; Liang, Jialin; Huang, Jinjia; Huang, Shaosong; Zheng, Li; Sun, Shuiyu; Zhong, Zhenyi; Zhang, Xinghong; Yu, Xiaoyu; Guan, Zhijie
Source:
Journal of hazardous materials 2019 v.369 pp. 31-39
ISSN:
0304-3894
Subject:
acidification,   etc   ; dewatering; pH; particle size; polymers; sludge; viscoelasticity; waste treatment;     Show all 8 Subjects
Abstract:
... The initial pH value of sludge affects sludge anaerobic digestion and dewatering performance. In order to determine the suitable pH value and decrease the sludge digestion time, in this study, the effect and the mechanism of combined acidification and anaerobic mesophilic digestion (acid-AMD) on sludge dewaterability were investigated. The changes and relationships among the extracellular polymeri ...
DOI:
10.1016/j.jhazmat.2019.02.012

7. Enhancing the performance and stability of the anaerobic digestion of sewage sludge by zero valent iron nanoparticles dosage

Author:
Lizama, Alfredo Córdova; Figueiras, Cristian Carrera; Pedreguera, Alejandro Zepeda; Ruiz Espinoza, Juan Enrique
Source:
Bioresource technology 2019 v.275 pp. 352-359
ISSN:
0960-8524
Subject:
acidification,   etc   ; anaerobic digestion; biogas; iron; methane; nanoparticles; sewage sludge;     Show all 7 Subjects
Abstract:
... This work studied the effects on the anaerobic digestion of sewage sludge by zero valent iron nanoparticles (NZVI) dosage. Biochemical methane potential tests were carried out with 5–9 mg/gVS (99.7%, 40–60 nm). The biogas yield increased from 132 (control) to 310 mL/gVS with 9 mg/gVS. The methane content increased from 63.2% (control) to 77.6% with NZVI, which corresponded to a maximum yield of 23 ...
DOI:
10.1016/j.biortech.2018.12.086

8. Direct and indirect impacts of marine acidification on the ecosystem services provided by coralligenous reefs and seagrass systems

Author:
Zunino, Serena; Canu, Donata Melaku; Zupo, Valerio; Solidoro, Cosimo
Source:
Global ecology and conservation 2019 v.18 pp. e00625
ISSN:
2351-9894
Subject:
acidification; ocean acidification,   etc   ; Posidonia oceanica; carbon dioxide; ecosystem services; greenhouse gas emissions; habitats; marine ecosystems; meadows; models; reefs; risk; seagrasses;     Show all 13 Subjects
Abstract:
... Increasing emissions of CO2 and the resultant ocean acidification (OA) will have large implications for the marine ecosystems sustained by habitat-forming species and their related ecosystem services (ES), with potentially significant impacts on human well-being. Here, we provide an assessment of the direct and indirect impacts of OA on ES. The changes in the functioning of coralligenous reefs and ...
DOI:
10.1016/j.gecco.2019.e00625

9. Transgenerational effects of short-term exposure to acidification and hypoxia on early developmental traits of the mussel Mytilus edulis

Author:
Kong, Hui; Jiang, Xiaoyu; Clements, Jeff C.; Wang, Ting; Huang, Xizhi; Shang, Yueyong; Chen, Jianfang; Hu, Menghong; Wang, Youji
Source:
Marine environmental research 2019
ISSN:
0141-1136
Subject:
acidification; ocean acidification,   etc   ; Mytilus edulis; acute exposure; aquatic organisms; early development; hypoxia; larvae; mussels; pH; parents; progeny; seawater;     Show all 13 Subjects
Abstract:
... Transgenerational effects of multiple stressors on marine organisms are emerging environmental themes. We thus experimentally tested for transgenerational effects of seawater acidification and hypoxia on the early development traits of the mussel Mytilus edulis. Fertilization rate, embryo deformity rate, and larval shell length were negatively impacted by acidification, while hypoxia had little ef ...
DOI:
10.1016/j.marenvres.2019.02.011

10. Anthropogenic ocean warming and acidification recorded by Sr/Ca, Li/Mg, δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia

Author:
Chen, Xuefei; D'Olivo, Juan Pablo; Wei, Gangjian; McCulloch, Malcolm
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.528 pp. 50-59
ISSN:
0031-0182
Subject:
acidification; ocean acidification,   etc   ; calcification; calcium; carbonates; coral reefs; corals; inorganic carbon; magnesium; ocean warming; pH; seasonal variation; strontium; summer; temperature; Australia;     Show all 16 Subjects
Abstract:
... The impact of climate changes on corals living in naturally extreme environments is poorly understood but crucial to longer-term sustainability of coral reefs. Here we report century-long temperature (Sr/Ca and Li/Mg) and calcifying fluid (CF) carbonate chemistry (δ11B and B/Ca) records for a long-lived (1919 to 2016) Porites coral from the high thermally variable Kimberley region of northwestern ...
DOI:
10.1016/j.palaeo.2019.04.033

11. Grazers increase the sensitivity of coralline algae to ocean acidification and warming

Author:
Legrand, Erwann; Riera, Pascal; Lutier, Mathieu; Coudret, Jérôme; Grall, Jacques; Martin, Sophie
Source:
Journal of sea research 2019 v.148-149 pp. 1-7
ISSN:
1385-1101
Subject:
acidification; ocean acidification,   etc   ; Lithothamnium; algae; calcification; carbon dioxide; grazing; ocean warming; photosynthesis; prediction; primary productivity; seasonal variation; summer; temperature; thallus; winter;     Show all 16 Subjects
Abstract:
... Coralline algae are expected to be adversely impacted by ocean acidification and warming. Most research on these algae has involved experiments on isolated species, without considering species interactions, such as grazing. This myopic view is challenging because the impact of climate change on coralline algae will depend on the direct impacts on individual coralline species and the indirect effec ...
DOI:
10.1016/j.seares.2019.03.001

12. Ecological-economic sustainability of the Baltic cod fisheries under ocean warming and acidification

Author:
Voss, Rudi; Quaas, Martin F.; Stiasny, Martina H.; Hänsel, Martin; Stecher Justiniano Pinto, Guilherme A.; Lehmann, Andreas; Reusch, Thorsten B.H.; Schmidt, Jörn O.
Source:
Journal of environmental management 2019 v.238 pp. 110-118
ISSN:
0301-4797
Subject:
acidification; ocean acidification,   etc   ; adaptive management; fisheries; fisheries management; larvae; livelihood; marine ecosystems; models; mortality; ocean warming; socioeconomics; temperature; time series analysis;     Show all 14 Subjects
Abstract:
... Human-induced climate change such as ocean warming and acidification, threatens marine ecosystems and associated fisheries. In the Western Baltic cod stock socio-ecological links are particularly important, with many relying on cod for their livelihoods. A series of recent experiments revealed that cod populations are negatively affected by climate change, but an ecological-economic assessment of ...
DOI:
10.1016/j.jenvman.2019.02.105

13. Effects of ocean warming and acidification on fertilization success and early larval development in the green sea urchin Lytechinus variegatus

Author:
Lenz, Brittney; Fogarty, Nicole D.; Figueiredo, Joana
Source:
Marine pollution bulletin 2019 v.141 pp. 70-78
ISSN:
0025-326X
Subject:
acidification; ocean acidification,   etc   ; Lytechinus variegatus; Strongylocentrotus nudus; additive effect; asymmetry; coral reefs; herbivores; larvae; larval development; macroalgae; metabolism; ocean warming; pH; water pollution; Caribbean; Florida;     Show all 17 Subjects
Abstract:
... Ocean acidification and warming are predicted to affect the early life of many marine organisms, but their effects can be synergistic or antagonistic. This study assessed the combined effects of near-future (2100) ocean acidification (pH 7.8) and warming (+3 °C) on the fertilization, larval development and growth of the green sea urchin, Lytechinus variegatus, common in tropical reefs of Florida a ...
DOI:
10.1016/j.marpolbul.2019.02.018

14. The influence of long-term animal manure and crop residue application on abiotic and biotic N immobilization in an acidified agricultural soil

Author:
Wang, Jing; Sun, Nan; Xu, Minggang; Wang, Shenqiang; Zhang, Jinbo; Cai, Zucong; Cheng, Yi
Source:
Geoderma 2019 v.337 pp. 710-717
ISSN:
0016-7061
Subject:
acidification; soil acidification,   etc   ; agricultural soils; animal manures; animals; carbon; carbon nitrogen ratio; fertilizer application; manure spreading; microbial activity; nitrogen; organic fertilizers; pH; prediction; stable isotopes; straw; China;     Show all 17 Subjects
Abstract:
... Long-term application of organic fertilizers in acidified agricultural soils could alter soil nitrogen (N) immobilization by providing carbon (C) source and alleviating soil acidification. However, an understanding of the relative importance of abiotic and biotic N immobilization in acidified agricultural soils following long-term organic fertilizer application is largely lacking. Generally, the a ...
DOI:
10.1016/j.geoderma.2018.10.022

15. An assessment of long-term soil acidification trends in Alberta, Canada

Author:
Cho, Sunny; Dinwoodie, Gordon; Fu, Yiyang; Abboud, Salim; Turchenek, Larry
Source:
Ecological indicators 2019 v.98 pp. 712-722
ISSN:
1470-160X
Subject:
acidification; soil acidification,   etc   ; aluminum; atmospheric deposition; base saturation; cations; chemical bases; environmental indicators; grasslands; linear models; monitoring; oil sands; oils; pH; regression analysis; sandy soils; Alberta;     Show all 17 Subjects
Abstract:
... Long-term soil acidification monitoring was initiated in 1981 to track potential effects of acidic atmospheric deposition on soils in Alberta, Canada. Six of eight long-term sampling sites were located in forest ecosystems on sandy soils in northern and central Alberta, and two were situated in grasslands on sandy and fine-loamy soils in southern Alberta. Sampling was undertaken every four or five ...
DOI:
10.1016/j.ecolind.2018.11.020

16. Divergent responses of Atlantic cod to ocean acidification and food limitation

Author:
Stiasny, Martina H.; Sswat, Michael; Mittermayer, Felix H.; Falk‐Petersen, Inger‐Britt; Schnell, Nalani K.; Puvanendran, Velmurugu; Mortensen, Atle; Reusch, Thorsten B. H.; Clemmesen, Catriona
Source:
Global change biology 2019 v.25 no.3 pp. 839-849
ISSN:
1354-1013
Subject:
acidification; ocean acidification,   etc   ; Gadus morhua; bone formation; carbon dioxide; carbon dioxide enrichment; energy; food availability; gills; larvae; larval development; liver; marine fish; ontogeny; skeleton;     Show all 15 Subjects
Abstract:
... In order to understand the effect of global change on marine fishes, it is imperative to quantify the effects on fundamental parameters such as survival and growth. Larval survival and recruitment of the Atlantic cod (Gadus morhua) were found to be heavily impaired by end‐of‐century levels of ocean acidification. Here, we analysed larval growth among 35–36 days old surviving larvae, along with org ...
DOI:
10.1111/gcb.14554

17. Mitigation of soil acidification through changes in soil mineralogy due to long-term fertilization in southern China

Author:
Tao, Liang; Li, Fang-bai; Liu, Cheng-shuai; Feng, Xiong-han; Gu, Li-li; Wang, Bo-ren; Wen, Shi-lin; Xu, Ming-gang
Source:
Catena 2019 v.174 pp. 227-234
ISSN:
0341-8162
Subject:
acidification; soil acidification,   etc   ; X-ray diffraction; aluminum; clay; goethite; hematite; ions; iron; nitrogen fertilizers; soil mineralogy; soil pH; soil sampling; China;     Show all 14 Subjects
Abstract:
... Soil acidification is a natural process, and it is well known that soil acidification can be accelerated by long-term fertilization (LTF). Nevertheless, how this acidification occurs and how the mineralogies of iron oxides as the important active clay components in red soil respond to the acidification is still less understood. In this study, soil samples from 23 years (1990–2013) of long-term fer ...
DOI:
10.1016/j.catena.2018.11.023

18. Root-induced soil acidification and cadmium mobilization in the rhizosphere of Sedum plumbizincicola: evidence from a high-resolution imaging study

Author:
Sun, Xi; Li, Zhu; Wu, Longhua; Christie, Peter; Luo, Yongming; Fornara, Dario A.
Source:
Plant and soil 2019 v.436 no.1-2 pp. 267-282
ISSN:
0032-079X
Subject:
acidification; soil acidification,   etc   ; Acrisols; Sedum plumbizincicola; bioavailability; cadmium; cations; chemical concentration; ecotypes; hyperaccumulators; image analysis; polluted soils; rhizosphere; root systems; roots; soil pH; soil pore water;     Show all 17 Subjects
Abstract:
... AIMS: Plant roots can significantly alter soil pH and the chemical concentration and distribution of different elements in the rhizosphere environment. Here we ask whether cadmium (Cd) bioavailability in the rhizosphere of Cd-hyperaccumulator Sedum plumbizincicola can be influenced by root-induced effects on soil pH. METHODS: The Cd-hyperaccumulator S. plumbizincicola and the Cd non-hyperaccumulat ...
DOI:
10.1007/s11104-018-03930-w

19. Spatio-temporal changes of cropland soil pH in a rapidly industrializing region in the Yangtze River Delta of China, 1980–2015

Author:
Xie, Enze; Zhao, Yongcun; Li, Haidong; Shi, Xuezheng; Lu, Fangyi; Zhang, Xiu; Peng, Yuxuan
Source:
Agriculture, ecosystems & environment 2019 v.272 pp. 95-104
ISSN:
0167-8809
Subject:
acidification; soil acidification,   etc   ; cropland; decision making; emissions; factories; fertilizer application; geostatistics; industrialization; lakes; mineral fertilizers; river deltas; soil pH; soil quality; topsoil; China; Yangtze River;     Show all 17 Subjects
Abstract:
... The impacts of rapid industrialization on spatio-temporal changes in soil pH have drawn major attention from the scientific community and decision-makers. A total of 1185 topsoil samples (0–20 cm) were collected from southern Jiangsu Province of China in 1980, 2000, and 2015, and the geostatistical sequential Gaussian simulation (SGS) was used to quantify the spatio-temporal patterns of changes in ...
DOI:
10.1016/j.agee.2018.11.015

20. Potential for mitigating global agricultural ammonia emission: A meta-analysis

Author:
Ti, Chaopu; Xia, Longlong; Chang, Scott X.; Yan, Xiaoyuan
Source:
Environmental pollution 2019 v.245 pp. 141-148
ISSN:
0269-7491
Subject:
acidification; soil acidification,   etc   ; air pollution; ammonia; ammonium nitrate; animals; biodiversity; cropping systems; eutrophication; fertilizers; greenhouse gas emissions; human health; livestock production; manure storage; meta-analysis; urease inhibitors;     Show all 16 Subjects
Abstract:
... Ammonia (NH3) emission from agricultural sources has contributed significantly to air pollution, soil acidification, water eutrophication, biodiversity loss, and declining human health. Although there are numerous strategies for reducing NH3 emission from agricultural systems, the effectiveness of these measures is highly variable. Furthermore, the integrated assessment of measures to reduce NH3 e ...
DOI:
10.1016/j.envpol.2018.10.124