Assessment of the Water Purification Ability of Mangrove (Sonneratia caseolaris) in Mesocosm Tanks

Abstract

Model experiments using mangrove mesocosm tanks were performed two times at the campus of Kasetsart University, Thailand. Replicates of 13 mangrove (Sonneratia caseolaris) saplings were planted in 7 mesocosm tanks and water and soil samples were collected during the 2 experimental periods. The nitrogen removal rate showed 57 and 73 mgN/m 2 /day in the tanks where wastewater from shrimp aquaculture ponds was supplied and exchanged, and 164-425 mgN/m 2 /day in the tanks where the additional nutrients were provided. The phosphorus removal rate was 5.7 and 17 mgP/m 2 /day in tanks supplied and exchanged with wastewater, and 48 and 97 mgP/m 2 /day in the tanks provided with additional nutrients. Both nitrogen and phosphorus showed high removal rates in the mangrove mesocosm tanks. However, there was no marked increase in the bacterial community either in the water or surface soil, despite the organic matter-rich wastewater from shrimp aquaculture ponds or high concentrations of inorganic nutrients that were supplied.

Economic Valuation of Regulating Ecosystem Services of Thai Thuy Wetland in the Red River Delta of Vietnam

“…Wong et al (1997) investigated the feasibility of using mangrove wetlands as a sewage treatment facility in the field of 300-hectare natural mangrove intertidal wetlands in Shenzhen, a newly developed city in southern China and the study results showed that those mangrove intertidal wetlands were of great potential for natural wastewater treatment. Shimoda et al (2009) also assessed the water purification ability of Mangrove (Sonneratia caseolaris) in Mesocosm Tanks. Both nitrogen and phosphorus showed high removal rates in the mangrove mesocosm tanks.…”

Possibility Of Using Sonneratia Caseolaris (L.) Engl) In the Aquaponic Model with White Shrimp combined with Tilapia

“…S. caseolaris has the capacity for municipal wastewater treatment, where COD and BOD5 treatment efficiency is 75%, total phosphorus, total nitrogen and N-NH3 removal efficiency are 60%, 46% and 50% respectively [10]. Besides, S. caseolaris is use for wetland, results showed removed 57 -73 mg/m 2 /day nitrogen and 5.7 -17 mg/m 2 /day phosphorus in tanks using intensive shrimp culture wastewater, with water changes every 3 days [11].…”