22
M. Al-Sahari et al.
Table 2.1
Natural and chemical coagulations performance
Coagulant type
Wastewater type
Coagulant dosage Treatment efficiency in terms of
parameter removal (%)
Reference
Natural coagulants
Moringa Oleifera
Seed
Landfill leachate
30,000 mg/L
Fe (100%), Cu & Cd (98%), Pb
(78.1%), respectively
Shan et al. (2017)
Domestic wastewater
200 mg/L
Turbidity (90.43%), BOD
5
(55.77%), Phosphorus
(88.84%), Nitrogen (54.54%),
Calcium (62.38%), CaCO
3
(50.48%), Coliform (97.5%)
Ugwu et al. (2017)
Chitosan
Textile wastewaters
10000 mg/L
TSS (99.65%), COD (70.5%),
Sulphides (25.53%), Greases
and oil content (79.57%)
Nechita (2017)
Oily produced water
Unit weight
Oil (96.35%)
Hosny et al. (2016)
Tamarind
seed powder
Detergent wastewater
400 mg/L
COD (43.50%), Turbidity
(97.78%)
Ronke et al. (2016)
Orange peel
Dairy wastewater
200 mg/L
Turbidity (97%)
Anju and Mophin (2016)
Rice starch
Microalgae sample
120 mg/L
Microalgae removal (80%)
Choy et al. (2016)
Kaolin wastewater
120 mg/L
Kaolin removal (50%)
Chua et al. (2019)
Chemical coagulants
Ferric chloride
Industrial wastewater
150 mg/L
COD (68.75%)
Naghan et al. (2015)
Metalworking wastewater
50–1000 mg/L
COD (55–93%), TOC (41–77%) Demirbas and Kobya (2017)
Alum
Textile wastewater
550 mg/L
Dye (75%), COD (36%)
Naghan et al. (2015)
Metalworking wastewater
50–1000 mg/L
COD (65–97%), TOC (49–81%) Demirbas and Kobya (2017)
Ferric sulphate
Metalworking wastewater
50–1000 mg/L
COD (43–92%), TOC (36–76%) Demirbas and Kobya (2017)
(continued)