Biochar enhances plant growth and nutrient removal in horizontal subsurface flow constructed wetlands

被引：123

作者：

Kasak, Kuno ^{[1
]}

Truu, Jaak ^{[1
]}

Ostonen, Ivika ^{[1
]}

Sarjas, Jurgen ^{[1
]}

Oopkaup, Kristjan ^{[1
]}

Paiste, Paarn ^{[1
]}

Koiv-Vainik, Margit ^{[1
]}

Mander, Ulo ^{[1
]}

Truu, Marika ^{[1
]}

机构：

[1] Univ Tartu, Inst Ecol & Earth Sci, Dept Geog, Vanemuise 46, EE-51014 Tartu, Estonia

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2018年 / 639卷

关键词：

Biochar; Constructed wetlands; Cattail biomass; Wastewater treatment; WASTE-WATER TREATMENT; NITROGEN REMOVAL; PHOSPHORUS; SOIL; CARBON; DENITRIFICATION; AVAILABILITY; VEGETATION; EMISSION; CAPACITY;

D O I：

10.1016/j.scitotenv.2018.05.146

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biochar has shown great potential as an amendment to improve soil quality and promote plant growth, as well as to adsorb pollutants from water. However, information about the effect of biochar on the wastewater treatment efficiency in horizontal subsurface flow (HSSF) constructed wetlands (CWs) is still scarce. In this study, we assessed the effect of biochar amendment on the purification efficiency of pretreated municipal wastewater in planted (Typha latifolia) experimental horizontal subsurface flow filters filled with lightweight expanded clay aggregates (LECA). The addition of wood-derived biochar (10% v/v) to LECA significantly increased plant biomass production and enhanced the wastewater treatment efficiency of the planted filters. Both the aboveground plant biomass and belowground plant biomass were higher (1.9-and 1.5-fold, respectively) in the filters of the LBP (LECA + biochar + plants) treatments compared to the LP (LECA + plants) filters. The water pH was significantly lower in the planted filters (LBP b LP b LB-LECA+ biochar). The efficiencies of TN and TP removal from wastewater were highest in the LBP filters (20.0% and 22.5%, respectively), followed by the LP (13.7% and 16.2%, respectively) and LB (9.5% and 15.6%, respectively) filters. More N and Pwere incorporated into the plant biomass from wastewater in the presence of biochar in the filter medium. The study results confirm that biochar can be an advantageous supplement for planted HSSF CWs to enhance the treatment efficiency of these systems. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：67 / 74

页数：8

共 49 条

[21] Contribution of rhizomicrobial and root respiration to the CO2 emission from soil (A review) [J].

Kuzyakov, Ya. V. ;

Larionova, A. A. .

EURASIAN SOIL SCIENCE, 2006, 39 (07) :753-764

[22] Bio-char sequestration in terrestrial ecosystems - A review [J].

Lehmann J. ;

Gaunt J. ;

Rondon M. .

Mitigation and Adaptation Strategies for Global Change, 2006, 11 (2) :403-427

[23] Nutrient availability and leaching in an archaeological Anthrosol and a Ferralsol of the Central Amazon basin: fertilizer, manure and charcoal amendments [J].

Lehmann, J ;

da Silva, JP ;

Steiner, C ;

Nehls, T ;

Zech, W ;

Glaser, B .

PLANT AND SOIL, 2003, 249 (02) :343-357

[24]

Lehmann J, 2007, FRONT ECOL ENVIRON, V5, P381, DOI 10.1890/1540-9295(2007)5[381:BITB]2.0.CO

[25]

[26] Biochar effects on soil biota - A review [J].

Lehmann, Johannes ;

Rillig, Matthias C. ;

Thies, Janice ;

Masiello, Caroline A. ;

Hockaday, William C. ;

Crowley, David .

SOIL BIOLOGY & BIOCHEMISTRY, 2011, 43 (09) :1812-1836

[27] Black Carbon increases cation exchange capacity in soils [J].

Liang, B. ;

Lehmann, J. ;

Solomon, D. ;

Kinyangi, J. ;

Grossman, J. ;

O'Neill, B. ;

Skjemstad, J. O. ;

Thies, J. ;

Luizao, F. J. ;

Petersen, J. ;

Neves, E. G. .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2006, 70 (05) :1719-1730

[28] Active Filtration of Phosphorus on Ca-Rich Hydrated Oil Shale Ash: Does Longer Retention Time Improve the Process? [J].

Liira, Martin ;

Koiv, Margit ;

Mander, Uelo ;

Motlep, Riho ;

Vohla, Christina ;

Kirsimaee, Kalle .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (10) :3809-3814

[29] Organic and inorganic contaminants removal from water with biochar, a renewable, low cost and sustainable adsorbent - A critical review [J].

Mohan, Dinesh ;

Sarswat, Ankur ;

Ok, Yong Sik ;

Pittman, Charles U., Jr. .

BIORESOURCE TECHNOLOGY, 2014, 160 :191-202

[30] The effects of woodchip- and straw-derived biochars on the persistence of the herbicide 4-chloro-2-methylphenoxyacetic acid (MCPA) in soils [J].

Muter, Olga ;

Berzins, Andrejs ;

Strikauska, Silvija ;

Pugajeva, Iveta ;

Bartkevics, Vadims ;

Dobele, Galina ;

Truu, Jaak ;

Truu, Marika ;

Steiner, Christoph .

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2014, 109 :93-100

← 1 2 3 4 5 →