EVALUATION OF BIOSORPTION POTENTIAL AND PRODUCTION OF BIOCOMPOST AND BIOGAS FROM METAL ACCUMULATED SEAWEEDS

This paper investigates the potential of accumulated seaweeds used in biosorption of metals from effluents. The order of biosorption found in Kappaphycusalvarezii>Ulvalactuca>Caulerparacemosa. The biosorption of Cr, Ni Cu removal received in Kappaphycusalvarezii, Ulvalactuca, Caulerparacemosafound as 68.71 % (E1), 90.22 % (E1), 81.53 % (E4); 62.2 % (E6), 35.63 % (E1) and 70.35 % (E4) and 20.23 % (E1), 28.84 % (E1) and 42.91 % (E6) respectively. After treatment accumulated seaweeds applied to evaluate biocompost, biogas and biofertilizing potential. The algal compost analysis values were nearer to Indian Govt. specifications, they observed maximum for total organic carbon in Caulerparacemosa(16.87 %), total phosphate in Ulvalactuca (0.36 %), total potassium and total nitrogen in Ulvalactuca(0.72 %) and Kappaphycusalvarezii (0.9 %) respectively. The C/N ratio was found maximum in Caulerparacemosa (28.11). The biofertilizing potential was studied by applying the compost on TriticumaestivumandVignaradiataseeds which received effective germination and pigment content in both the plants as compare to control which shows good level of pigment content in plants. The maximum biogas was found in Caulerparacemosa, Kappaphycusalvarezii and Ulvalactucaas23.90 %, 21.39 % and 17.29 %.