Table 2.

Summarises highlighted data from the authors’ experiments, focusing on yields and reaction efficiencies

 Raw materialSludgeSolutionPrecipitate
SamplenameSludgeraw: gWaste sulfuricacid: gFilteredsludge: gDriedsludge: gFilteredsolution: gFinalsolution: gFilteredprecipitate: gDriedprecipitate: g
LD 4H105022.4911.2 ± 0.8823.2217.0 ± 0.844.493.1 ± 0.32
LD 5H105019.2810.4 ± 0.5228.6220.0 ± 0.507.95.8 ± 0.27
LD 7H105024.3812.0 ± 0.7124.9618.3 ± 0.825.323.6 ± 0.19
LD 9H105022.911.3 ± 1.1424.716.8 ± 0.985.633.5 ± 0.22
CF 4H105022.3612.0 ± 0.5326.4316.3 ± 0.717.365.0 ± 0.24
CF 5H105017.78.4 ± 0.9824.6114.0 ± 0.778.826.1 ± 0.17
CF 7H105022.3111.2 ± 0.7524.2916.4 ± 0.606.454.2 ± 0.13
CF 9H105021.478.0 ± 0.5821.1911.58 ± 0.417.785.2 ± 0.13
CR 4H105012.066.6 ± 04642.4438.3 ± 0.760.970.1 ± 0.1
CR 5H105011.826.3 ± 0.342.1639.6 ± 0.370.620
CR 7H105011.517.6 ± 0.3742.8140.0 ± 0.500.790
CR 9H105010.926.9 ± 06141.6838.4 ± 0.950.870
LD + CF 5H105016.538.9 ± 0.8331.0513.6 ± 0.9913.368.9 ± 0.31
LD + CFdried sludge7.63Final sol 14 ± 1.5 + WSA 30 ± 4.64.981.2 ± 0.7329.8115.0 ± 3.3514.279.3 ± 0.76

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