Using Echinodorus cordifolius Augmented with Pseudomonas putida and Flavobacterium oryzihabitans for Domestic Wastewater Treatment

Contaminated phosphorus in aquatic environments is a critical problem. This research studied on removal of phosphorus from domestic wastewater by using Echinodorus cordifolius augmented with Pseudomonas putida and Flavobacterium oryzihabitans. Plants treated phosphorus from domestic wastewater for 20 test runs continuously, the effect of phosphorus treatment by microorganisms in domestic wastewater was very high at 58% in the first test run. Therefore, P. putida and F. oryzihabitans that were dominant microorganisms in domestic wastewater were inoculated in the system to contribute plants for phosphorus treatment. The result found that E. cordifolius augmented with P. putida and E. cordifolius augmented with mixed microorganisms (P. putida and F. oryzihabitans) could reduce phosphorus in domestic wastewater until passed standard criteria only 14 hrs. Moreover, it was found that the plants were healthy and increased growth rate in a month obviously conform to the increase of plant biomass. This result indicated that P. putida and mixed microorganisms (P. putida and F. oryzihabitans) contributed phosphorus treatment rapidly and supported plants growth that showed sustainable system. Therefore, using E. cordifolius augmented with P. putida and F. oryzihabitans suit to apply for domestic wastewater treatment. Keywords—phosphorus, domestic wastewater, Echinodorus cordifolius, Pseudomonas putida, Flavobacterium oryzihabitans