. 2019 Dec 2;9:18098. doi: 10.1038/s41598-019-54744-4

Table 4.

Comparison of water absorbency results for practical applications of SAPs under various loads.

Authors	Type of SAP	Type of soil	Soil bulk density [g∙cm⁻³]	Absorbed substance	Load [kPa]	SAP addition [% w/w]	Water absorbency [g∙g⁻¹]
Lawal et al.⁴⁷	Xerogel	—	—	DI water	4.5	—	27.00
Salimi et al.⁴⁴	Carrageenan-based SAP hydrogel hybrid (AA/HEA = 1)	—	—	0.9% NaCl solution	2.07	—	38
Salimi et al.⁴⁴	Carrageenan-based SAP hydrogel hybrid (AA/HEA = 1)	—	—	0.9% NaCl solution	6.21	—	34
Pourjavadi et al.³⁶	CMC-g-poly (acrylic acid-co-2-acrylamido-2-methylpropanesulfonic acid)/silica gel composite	—	—	0.9% NaCl solution	2.07	—	44
					4.14		40
					6.21		40
Lejcuś et al.³⁵	Aquasorb 3005 KL	—	1.3	DI water	1.28	—	63.4
					2.55		21.9
					3.83		19.3