Adsorption of Low-Concentration Phosphorus from Water by Composite Metal-Modified Biochar

SUN Ting-ting1 GAO Fei1 LIN Li1 LI Rui1 DONG Lei1

(1.Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan, China 430010)

【Abstract】In this study, we synthesized composite metal-modified biochar using fruit shell biochar impregnated with ferric chloride and potassium permanganate. We investigated its potential to adsorb phosphorus at low concentration. Results show that the adsorption of low-concentration phosphorus by Fe-and Mn-modified biochar was significantly better than by non-modified biochar. SEM and FT-IR spectra indicate that iron and manganese oxides or iron hydroxides might be present on the surface of Fe and Mn modified biochar. Under the conditions of phosphorus concentration of 0.5 mg·L−1, temperature of 298 K and solid-to-liquid ratio (mg:L) of 500, the adsorption capacity of modified biochar was 0.96 mg·g−1. When the pH of the solution was 4–10, a higher removal rate and adsorption capacity were realized. The biochar equilibrium data were fitted to the Freundlich equation, which indicated that the adsorption was a multimolecular layer adsorption. Adsorption thermodynamics studies showed that ΔGθ < 0, ΔHθ > 0, and ΔSθ > 0, indicating that the adsorption was a spontaneous endothermic process, with positive entropy. The adsorption reached equilibrium after 60 min, and the adsorption kinetics followed a pseudo-second-order model. This research provides basic data for the removal of low-concentration phosphorus from water body and sewage treatment plant.

【Keywords】 biochar; low-concentration phosphorus; adsorption; composite metal-modified; ferric chloride; potassium permanganate;

【DOI】

【Funds】 Fundamental Research Funds for Central Public Welfare Research Institutes (CKSF2017062/SH)

Download this article

(Translated by SUN Z)

    References

    [1] Wang H J, Wang H Z. Mitigation of lake eutrophication: loosen nitrogen control and focus on phosphorus abatement [J]. Progress in Natural Science, 2009, 19(10): 1445–1451.

    [2] Kong FX, Song LR. 蓝藻水华形成过程及其环境特征研究 [M]. Beijing: Science Press, 2011 (in Chinese).

    [3] Guzman L, Gunawan G, Viswanathan T. Removal of phosphorus from contaminated wastewater using an iron-containing quaternized wood nanocomposite [J]. International Journal of Green Nanotechnology, 2012, 4(3): 207–214.

    [4] Hansen B. Environmental engineering: long-term plan seeks to reduce phosphorus in Spokane River [J]. Civil Engineering, 2006, 76(10): 24–25.

    [5] Tian S L, Jiang P X, Ning P, et al. Enhanced adsorption removal of phosphate from water by mixed lanthanum/aluminum pillared montmorillonite [J]. Chemical Engineering Journal, 2009, 151(1–3): 141–148.

    [6] Shaheen S M, Niazi N K, Hassan N E E, et al. Wood-based biochar for the removal of potentially toxic elements in water and wastewater: a critical review [J]. International Materials Reviews, 2019, 64(4): 216–247.

    [7] Inyang M I, Gao B, Yao Y, et al. A review of biochar as a low cost adsorbent for aqueous heavy metal removal [J]. Critical Reviews in Environmental Science and Technology, 2016, 46(4): 406–433.

    [8] Qambrani N A, Rahman M, Won S, et al. Biochar properties and eco-friendly applications for climate change mitigation, waste management, and wastewater treatment: a review [J]. Renewable and Sustainable Energy Reviews, 2017, 79: 255–273.

    [9] Wang Z H, Guo H Y, Shen F, et al. Biochar produced from oak sawdust by Lanthanum(La)-involved pyrolysis for adsorption of ammonium(NH4+), nitrate(NO3), and phosphate(PO43) [J]. Chemosphere, 2015, 119: 646–653.

    [10] Yao Y, Gao B, Inyang, M, et al. Removal of phosphate from aqueous solution by biochar derived from anaerobically digested sugar beet tailings [J]. Journal of Hazardous Materials, 2011, 190(1–3): 501–507.

    [11] Lu H Y, Feng Y F, Feng Y Y, et al. Cerium-modified biochar: a recycling biomaterial for regulating phosphorus availability in paddy ecosystem from coastal mudflat reclamation [J]. Geoderma, 2019, 346: 43–51.

    [12] Jiang Y H, Li A Y, Deng H, et al. Characteristics of nitrogen and phosphorus adsorption by Mg-loaded biochar from different feedstocks [J]. Bioresource Technology, 2019, 276: 183–189.

    [13] Zhi M M, Wang P F, Hou Z Y, et al. Effect of nitrogen on magnesium modified biochar adsorption to phosphorus [J]. Environmental Science, 2019, 40(2): 669–676 (in Chinese).

    [14] Zhong Z X, Yu G W, Mo W T, et al. Enhanced phosphate sequestration by Fe(Ⅲ) modified biochar derived from coconut shell [J]. RSC Advances, 2019, 9(18): 10425–10436.

    [15] Jiang Y H, Li A Y, Deng H, et al. Phosphate adsorption from wastewater using ZnAl-LDO-loaded modified banana straw biochar [J]. Environmental Science and Pollution Research, 2019, 26(18): 18343–18353.

    [16] Yin Q Q, Wang R K, Zhao Z H. Application of Mg-Al-modified biochar for simultaneous removal of ammonium, nitrate, and phosphate from eutrophic water [J]. Journal of Cleaner Production, 2018, 176: 230–240.

    [17] Yi M, Chen Y C. Enhanced phosphate adsorption on Ca-Mg loaded biochar derived from tobacco stems [J]. Water Science & Technology, 2018, 78(11): 2427–2436.

    [18] Wan S F, Wang S S, Li Y C, et al. Functionalizing biochar with Mg-Al and Mg-Fe layered double hydroxides for removal of phosphate from aqueous solutions [J]. Journal of Industrial and Engineering Chemistry, 2017, 47: 246–253.

    [19] Zheng X Q, Wei A L, Zhang Y X, et al. Characteristic of nitrate adsorption in aqueous solution by iron and manganese oxide/biochar composites [J]. Environmental Science, 2018, 39(3): 1220–1232 (in Chinese).

    [20] Zuo W Y, Tong H J, Shi B F, et al. Adsorption of benzoic acid from aqueous solution by biochar/manganese oxide composite material [J]. Inorganic Chemicals Industry, 2018, 50(8): 57–61 (in Chinese).

    [21] Qin Y M, Liang M N, Wang D Q, et al. Preparation and arsenic adsorption and its mechanisms by mulberry stem biochar/Fe-Mn oxides composite adsorbent [J]. Journal of Agro-Environment Science, 2016, 35(7): 1398–1406 (in Chinese).

    [22] Lin L N, Huang Q, Liu Z Q, et al. Preparation of biochar-ferromanganese oxide composite material and properties of removal of arsenic (Ⅲ) from aqueous solution [J]. Journal of Agricultural Resources and Environment, 2017, 34(2): 182–188 (in Chinese).

    [23] Qin Y M, Wang D Q, Liang M N, et al. Preparation of mulberry stem activated carbon/Fe-Mn oxide composite sorbent and its effects on the adsorption of Cr(Ⅵ) [J]. Environmental Chemistry, 2016, 35(4): 783–792 (in Chinese).

    [24] Zhao T C, Zhou S Z, Ma X L, et al. Study on the adsorption of Pb2+ by MnFeOx-loaded corncob biochar [J]. Acta Scientiae Circumstantiae, 2019, 39(9): 2997–3009 (in Chinese).

    [25] Xu N N, Lin D S, Xu Y M, et al. Adsorption of aquatic Cd2+ by biochar obtained from corn stover [J]. Journal of Agro Environment Science, 2014, 33(5): 958–964 (in Chinese).

    [26] Rahimi S, Moattari R M, Rajabi L, et al. Iron oxide/hydroxide (α, γ-Fe OOH) nanoparticles as high potential adsorbents for lead removal from polluted aquatic media [J]. Journal of Industrial and Engineering Chemistry, 2015, 23: 33–43.

    [27] Jiang X T, Chi J. Phosphorus adsorption by and forms in Femodified biochar [J]. Journal of Agro-Environment Science, 2014, 33(9): 1817–1822 (in Chinese).

    [28] Tang D Y, Huang Y, Xu R C, et al. Adsorption behavior of low concentration phosphorus from water onto modified reed biochar [J]. Environmental Science, 2016, 37(6): 2195–2201 (in Chinese).

    [29] Zheng NJ, Tang DY, Hu JL, et al. 混合改性芦苇生物炭对水中磷酸盐的吸附特性研究 [J]. China Rural Water and Hydropower, 2018, (6): 97–101, 107 (in Chinese).

    [30] Shi M, Sun J, Ji W H, et al. Research on adsorption of phosphate from water onto iron modified reed biochar [J]. Shandong Chemical Industry, 2018, 47(5): 164–166 (in Chinese).

    [31] Yu G W, Zhang B P, Ding W H. Aluminum modified bamboo charcoal for enhanced adsorption of phosphorous from water [J]. Journal of Huazhong University of Science and Technology (Nature Science Edition), 2015, 43(10): 117–122 (in Chinese).

    [32] Wang Y, Gao B Y, Yue W W, et al. Adsorption kinetics of phosphate from aqueous solutions onto modified corn residue [J]. Environmental Science, 2008, 29(3): 703–708 (in Chinese).

    [33] Sun HJ, Feng YF, Cao XH, et al. Study on Removal of PO43− in Water by Al/Zn Modified Bamboo Charcoal and Its Influencing Factors [J]. Technology of Water Treatment, 2017, 43(8): 40–43, 49 (in Chinese).

    [34] Kachabi M, EI Mrabet I, Nawdali M, et al. Synthesis and adsorption properties of activated carbon from KOH-activation of Moroccan Jujube shells for the removal of COD and color from wastewater [J]. Mediterranean Journal of Chemistry, 2019, 8(2): 168–178.

    [35] Li S M S, Zeng Z X, Xue W L. Adsorption of lead ion from aqueous solution by modified walnut shell: kinetics and thermodynamics [J]. Environmental Technology, 2019, 40(14): 1810–1820.

    [36] Hou J, Huang L, Yang Z M, et al. Adsorption of ammonium on biochar prepared from giant reed [J]. Environmental Science and Pollution Research, 2016, 23(19): 19107–19115.

    [37] Freundlich H M F. Over the adsorption in solution [J]. The Journal of Physical Chemistry, 1906, 57: 385–471.

    [38] Chen J, Li W M, Ding W C, et al. Removal of ammonia nitrogen by Fe/Mg-modified bamboo charcoal [J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5187–5192 (in Chinese).

    [39] Yi M, Li T T, Li H H, et al. Characteristics of phosphorus adsorption in aqueous solution by Ca/Mg-loaded biogas residue biochar [J]. Environmental Science, 2019, 40(3): 1318–1327 (in Chinese).

    [40] Ding L, Wu C, Deng H P, et al. Adsorptive characteristics of phosphate from aqueous solutions by MIEX resin [J]. Journal of Colloid and Interface Science, 2012, 376(1): 224–232.

This Article

ISSN:0250-3301

CN: 11-1895/X

Vol 41, No. 02, Pages 784-791

February 2020

Downloads:4

Share
Article Outline

Knowledge

Abstract

  • 1 Materials and methods
  • 2 Results and discussion
  • 3 Conclusions
  • References