Sponge effect of aerated concrete on phosphorus adsorption-desorption from agricultural drainage water in rainfall
In the initial stage of the rainfall, the nutrient element phosphorus (P) in the farmland, one of the most important factors causing agricultural non-point source pollution, flows into agriculture drainage ditches rapidly, and an instantaneous phosphorus peak value in the ditch water often occurs. Aerated concrete with high P adsorption properties was chosen as the experiment material in the laboratory to reduce the instantaneous P peak value in the drainage water in the initial stage of the rainfall. The three total P (TP) concentrations of the simulated drainage water (1.0, 2.0, and 3.0 mg/L) stood for three treatments were designed in the adsorption experiment; the same three TP concentrations of the simulated drainage water and the three TP concentrations of the simulated natural water (0.2, 0.3, and 0.4 mg/L) stood for nine treatments in the desorption experiment. The sponge effect of the aerated concrete on the P adsorption-desorption was explored by studying the dynamics of the P adsorption-desorption of the aerated concrete with an increase in the experiment’s time. The results showed the following details: (1) Both the adsorption rate and desorption rate of the aerated concrete decrease with an increase in the experiment’s time. The initial adsorption is dominant during the entire adsorption, as with the initial desorption during the entire desorption. (2) The adsorption capacity of the aerated concrete slightly decreases with the increase in the re-adsorption, whereas the desorption capacity of the aerated concrete significantly decreases with the increase in the re-desorption. Thus, the aerated concrete can be introduced into the agricultural drainage ditch to reduce the instantaneous P peak value in the drainage water in the initial stage of the rainfall, and potential further studies should explore the relationship between the different drainage water loads and the amount of the aerated concrete.
Castellar J.A.D.C., Formosa J., Chimeno J.M., Canals J., Bosch M., Rosell J.R., Silva H.P.D., Morató J., Brix H., Arias C.A. (2019): Crushed Autoclaved Aerated Concrete (CAAC), a potential reactive filter medium for enhancing phosphorus removal in nature-based solutions – preliminary batch studies. Water, 11: 1442. https://doi.org/10.3390/w11071442
Chinese EPA (2002): Methods for Water and Wastewater Analysis. Vol. 3, 4th Ed. Beijing, Environmental Science Publishing House of China, 246–248. (in Chinese)
Cucarella V., Renman G. (2009): Phosphorus sorption capacity of filter materials used for on-site wastewater treatment determined in batch experiments – a comparative study. Journal of Environmental Quality, 38: 381–392. https://doi.org/10.2134/jeq2008.0192
Deng Y., Wheatley A. (2018): Mechanisms of phosphorus removal by recycled crushed concrete. International Journal of Environmental Research and Public Health, 15: 357. https://doi.org/10.3390/ijerph15020357
Fu W.G., Li P.P. (2011): Characteristics of phosphorus adsorption of aerated concrete in wastewater treatment. Advanced Materials Research, 183–185: 466–470. https://doi.org/10.4028/www.scientific.net/AMR.183-185.466
George D., Mallery P. (2013): IBM SPSS Statistics 21 Step by Step: A Simple Guide and Reference.Vol.12, Boston, Pearson Education: 164–172.
Haddad K., Jellali S., Jeguirim M., Trabelsi H.A.B., Limousy L. (2018): Investigations on phosphorus recovery from aqueous solutions by biochars derived from magnesium-pretreated cypress sawdust. Journal of Environmental Management, 216: 305–314. https://doi.org/10.1016/j.jenvman.2017.06.020
Hou Q.J., Meng P.P., Pei H.Y., Hu W.R., Chen Y. (2018): Phosphorus adsorption characteristics of alum sludge: Adsorption capacity and the forms of phosphorus retained in alum sludge. Materials Letters, 229: 31–35. https://doi.org/10.1016/j.matlet.2018.06.102
Kröger R., Holland M.M., Moore M.T., Cooper C.M. (2008): Agricultural drainage ditches mitigate phosphorus loads as a function of hydrological variability. Journal of Environmental Quality, 37: 107–113. https://doi.org/10.2134/jeq2006.0505
Lee J.H., Bang K.W., Ketchum L.H., Choe J.S., Yu M.J. (2002): First flush analysis of urban storm runoff. Science of the Total Environment, 293: 163–175. https://doi.org/10.1016/S0048-9697(02)00006-2
Li S.M., Wang X.L., Tu J.M., Qiao B., Li J.S. (2016): Nitrogen removal in an ecological ditch based on an orthogonal test. Water, Air, & Soil Pollution, 227: 396.
Li S.Y., Cooke R.A., Wang L., Ma F., Bhattarai R. (2017): Characterization of fly ash ceramic pellet for phosphorus removal. Journal of Environmental Management, 189: 67–74.
Liu D. (2016): Research on efficient collection technology of agricultural sewage on the east basin of Dianchi [MA.Eng. Thesis.] Chongqing, Chongqing University. (in Chinese)
Mor S., Chhoden K., Ravindra K. (2016): Application of agro-waste rice husk ash for the removal of phosphate from the wastewater. Journal of Cleaner Production, 129: 673–680. https://doi.org/10.1016/j.jclepro.2016.03.088
Özacar M. (2003): Adsorption of phosphate from aqueous solution onto alunite. Chemosphere, 51: 321–327. https://doi.org/10.1016/S0045-6535(02)00847-0
Paradelo R., Conde-Cid M., Cutillas-Barreiro L., Arias-Estéveza M., Nóvoa-Muñoza J.C., Álvarez-Rodríguezb E., Fernández-Sanjurjob M.J., Núñez-Delgadob A. (2016): Phosphorus removal from wastewater using mussel shell: Investigation on retention mechanisms. Ecological Engineering, 97: 558–566. https://doi.org/10.1016/j.ecoleng.2016.10.066
Saeed T., Muntaha S., Rashid M., Sun G.Z., Hasnat A. (2018): Industrial wastewater treatment in constructed wetlands packed with construction materials and agricultural by-products. Journal of Cleaner Production, 189: 442–453. https://doi.org/10.1016/j.jclepro.2018.04.115
Vohla C., Kõiv M., Bavor H.J., Chazarenc F., Mander Ü. (2011): Filter materials for phosphorus removal from wastewater in treatment wetlands: A review. Ecological Engineering, 37: 70–89. https://doi.org/10.1016/j.ecoleng.2009.08.003
Wang J.L., Chen G.F., Zou G.Y., Song X.F., Liu F.X. (2019): Comparative on plant stoichiometry response to agricultural non-point source pollution in different types of ecological ditches. Environmental Science and Pollution Research, 26: 647–658. https://doi.org/10.1007/s11356-018-3567-9
Williams M.R., Livingston S.J., Penn C.J., Smith D.R., King K.W., Huang C.H. (2018): Controls of event-based nutrient transport within nested headwater agricultural watersheds of the western Lake Erie basin. Journal of Hydrology, 559: 749–761. https://doi.org/10.1016/j.jhydrol.2018.02.079
Yang F., Jiang Y.F., Wang C.C., Huang X.N., Wu Z.Y., Chen L. (2016): Characteristics of nitrogen and phosphorus losses in Longhong Ravine Basin of Westlake in rainstorm. Environmental Science, 37: 141–147. (in Chinese)
Zhang X.L., Zhu G.C. (2018): Effect and mechanism of phosphorus adsorption in initial rainfall runoff by autoclaved aerated concrete block. Chinese Journal of Environmental Engineering, 12: 2202–2209. (in Chinese)
Zhang Y., Zou Y., Huang Y., Wang C., Li F. (2005): Phosphate adsorption and desorption characteristic of several fly ashes. Chinese Journal of Applied Ecology, 16: 1756–1760. (in Chinese)
Zhou H.X., Bhattarai R., Li Y.K., Li S.Y., Fan Y.H. (2019): Utilization of coal fly and bottom ash pellet for phosphorus adsorption: Sustainable management and evaluation. Resources, Conservation and Recycling, 149: 372–380. https://doi.org/10.1016/j.resconrec.2019.06.017