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. 2023 May 23;71(22):8265–8296. doi: 10.1021/acs.jafc.3c00454

Table 2. Key Substances in Nutrient Recovery from Wastes and Wastewaters Research.

Substance Class Substance REG No. Publications Feature/Areas of Interest Example Publications
Elements Carbon 7440–44–0 13,787 Sorbent (95, 177, 195,219, 220)
Graphite 7782–42–5 58 Coagulator (221224)
Sorbent
Electrode material for electrochemical wastewater treatment
Graphene 1034343–98–0 56 Sorbent (225, 226)
Electrode material for electrochemical wastewater treatment
Oxides/Hydroxides Silica (SiO2) 7631–86–9 1,214 Sorbent Flocculant (227230)
Calcium oxide 1305–78–8 917 Sorbent (231234)
Precipitating agent
Magnesium oxide 1309–48–4 882 Struvite precipitating agent (52, 235, 236)
Sorbent
Alumina 1344–28–1 688 Sorbent (232, 237239)
Filtration membrane
Iron oxide (Fe2O3) 1309–37–1 650 Sorbent (196, 240243)
Zinc oxide 1314–13–2 340 Sorbent (244246)
Precipitating agent
Titania 13463–67–7 323 Flocculant (247, 248)
Sorbent
Iron oxide 1332–37–2 171 Sorbent (249, 250)
Manganese oxide (MnO2) 1313–13–9 137 Sorbent (251253)
Manganese oxide (MnO) 1344–43–0 113 Sorbent (205,254,255)
Copper oxide (CuO) 1317–38–0 102 Sorbent (256258)
Manganese oxide 11129–60–5 80 Sorbent (259)
Iron oxide (Fe3O4) 1317–61–9 53 Magnetic Sorbent (260264)
Calcium hydroxide 1305–62–0 226 Precipitating agent (265267)
Biosorbent
Pretreatment agent
Coagulant
Magnesium hydroxide 1309–42–8 82 Precipitating agent (268270)
Coagulant
Aluminum hydroxide 21645–51–2 73 Sorbent (271273)
Metal salts Calcium carbonate (CaCO3) 471–34–1 1,820 Precipitating agent (175, 274, 275)
Sorbent
Calcium chloride 10043–52–4 862 Hydroxyapatite precipitating agent (276, 277)
Magnesium chloride 7786–30–3 279 Forward osmosis membrane component (269, 278281)
Struvite precipitating agent
Iron chloride (FeCl3) 7705–08–0 187 Flocculant (269, 282284)
Magnesium carbonate 546–93–0 79 Struvite precipitating agent (52, 285)
Zinc chloride 7646–85–7 76 Absorbent (286)
Magnesium nitrate 10377–60–3 102 Hydroxyapatite precipitating agent (287)
Minerals, clays Gypsum (CaSO4·2H2O) 13397–24–5 1,182 Soil additive (288290)
Nutrient solubility
Improver
Phosphorus loss inhibitor
Dolomite CaMg(CO3)2 16389–88–1 444 Hydroxyapatite precipitating agent (291294)
Sorbent
Calcite 13397–26–7 388 Precipitating agent (295299)
Sorbent
Kaolinite (Al2(OH)4(Si2O5) 1318–74–7 237 Sorbent (300, 301)
Vermiculite 1318–00–9 206 Sorbent (302304)
Ion exchanger
Montmorillonite 1318–93–0 158 Sorbent Ion exchanger (305307)
Pyrite 1309–36–0 136 Sorbent (308310)
Hematite Fe2O3 1317–60–8 127 Sorbent (311313)
Nutrient delivery enhancer
Goethite 1310–14–1 124 Sorbent (314316)
Clinoptilolite 12173–10–3 111 Sorbent (317320)
Ion-exchanger
Betaine 107–43–7 82 Sorbent (244, 321)
Magnetite Fe3O4 1309–38–2 76 Sorbent (322324)
Muscovite 1318–94–1 73 Sorbent (325)
Ferrihydrite (Fe5(OH)9O3) 39473–89–7 71 Sorbent (324, 326, 327)
Palygorskite 12174–11–7 68 Sorbent (328330)
Magnesite 13717–00–5 65 Struvite precipitating agent (331335)
Sorbent
Aragonite 14791–73–2 61 Sorbent (336, 337)
Gibbsite 14762–49–3 60 Sorbent (338340)
Biotite 1302–27–8 51 Precipitating agent (341, 342)
Polymers Starch 9005–25–8 1,597 Sorbent (343345)
Bioadditive
Cellulose 9004–34–6 999 Sorbent (194, 346, 347)
Filtration membrane
Hemicellulose 9034–32–6 456 Sorbent (348, 349)
Ion-exchange membrane
Chitosan 9012–76–4 282 Sorbent (53, 297, 350354)
Flocculant
Encapsulant