BIOREMEDIATION POTENTIAL OF SOME LOCAL GRASSES OF KARACHI CITY

In present study, higher biomass production is an important aspect because, the plant biomass can be used for different commercial purposes (Shukla et al., 2011; Houben et al., 2013), and in this case, maximum biomass in terms of average fresh weight and dry weight, 360 g and 257 g respectively, was observed in mix soils (50% healthy + 50% contaminated soil) in 90 days' experiment, was recorded for Elephant grass shown in (Table 3, Fig. 1). [...]it has been observed that it has the ability to remove agrochemical pollutant and prevented the accumulation of toxin in the ecosystem (Danh et al., 2009). Khabal grass has the ability to accumulate high concentration of Copper (Cu) and Cadmium (Cd) by the process of rhizodegradation and remediate crude oil, benzofuran, fly ash and aged sludge type soil contamination (Bauddh et al., 2017; Bharti et al., 2017). Statistical Analysis showed that the contaminated soil gave a much better reduction of pollutants like electrical conductivity, pH, sodium adsorption ratio and heavy metals.