Production costs are less easy to maintenance. Have a long life and efficient wastewater treatment better than using chemical-storage tree and water hyacinth which has a high cost and ecological destruction?
The cost of production is less Easy Maintenance Last for long and efficient treatment of wastewater, better use of microorganisms and canals, which are costly and damaging ecosystems.
The production cost low, maintenance is easy. Long lasting and effective treatment is better than the use of capacity and water hyacinth, which first aria with high costs and destroyed the ecosystem.