Etp Sludge Case Study

T0>T1>T11>T10>T9>T8>T7>T6>T5>T4>T3>T2. As the ETP sludge’s concentration increases the plant growth also increases in the same trend because the available N,P and K is increases gradually when the concentration of ETP sludge increases after incubation presented in figure 1. Moreover, vegetation of the treated soil proved that the presence of sludge marginally promotes the plants growth, while hindering the uptake of Zn and Pb by the leaves and the roots [25]. Growth performance of the plant in reference to seed germination %, shoot length, root length, fresh weight ,dry weight, leaf area and protein content was represented in figure 2, photosynthetic pigment content was represented in table 4. Plant growth was substantially improved after amending …show more content…
Maximizing leaf area will increase site productivity and efficiency [28]. Photosynthetic pigment is the amount of chlorophyll (a, b,c), pheophytin and carotenoid present in the plant. The amount of chlorophyll-a and pheophytin is maximum in (T0), chlorophyll-b is maximum in T4, chlorophyll-c and carotenoid is maximum in (T2). Observations suggest a marked decrease in photosynthetic pigment with the increase of etp sludge. Discouraging impact on photosynthetic pigment content may be for the reason that of the decrease of certain concentrations Cr and Fe present in overburden soil which can be active as structural and catalytic components of, enzymes and as cofactors for the standard progress of photosynthetic pigment biosynthesis. The maximum yields was occurred when ETP sludge is combined with overburden soil with T11(90:10) proportions followed by T10(80:20) > T9(70:30).As the concentration of ETP sludge decreases the yield is also decreases and it is lowest in pure overburden soil. The results recommended that ETP sludge application was enhancing the growth performance of the