2012 ©
Journal Publication
Research Title Reuse of Piggery Wastewater for Cultivation of Azolla microphylla for Sustainable Agriculture and Environment 
Date of Distribution 15 May 2021 
     Title of the Conference The 1st international conference on sustainable agriculture and aquaculture 
     Organiser Faculty of Natural Resources, Prince of Songkla University 
     Conference Place The eight floor, LRC building, Prince of Songkla Uniersity 
     Province/State Songkhla 
     Conference Date 11 January 2021 
     To 12 January 2021 
Proceeding Paper
     Page 76 
     Abstract Piggery farms are a major source of environmental impacts, causing a lot of pollution, especially water pollution. Beyond freshwater has been being consumed approximately 15L/animal/day that enable to produce much wastewater, loading contaminants, such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), phosphorous (P), nitrogen (N), copper (Cu) and zinc (Zn). Some of these, however,are nutrients (N, P, Cu and Zn) for plant or crop in case under limitation of reuse. Azolla microphylla (A.microphylla), an aquatic fern, not only could be used as phytoremediation for wastewater treatment, but also could be used as animal feeding and organic fertilizer. Therefore, this study aimed to identify efficiencies of A.microphylla in swine wastewater treatment, and the influence of surface area and time on biomass production and nutrient contents in the A.microphylla by using swine wastewater. A completely randomized design (CRD) with three treatments and three replicates within 21 days was implemented in greenhouse condition at 30.5 ± 3 oC. The 9 plastic buckets with three various surface areas, including large, medium, and small with sizes 0.47 m2, 0.22 m2, and 0.16 m2, respectively, were used. All treatments were inoculated 74 g of A. microphylla biomass, and swine wastewater at 5% with total amount volume of 60 liters, individually. Wastewater quality parameters, such as BOD, COD, NO3-,PO43-, Cu, and Zn were monitored. Besides, biomass and nutrients of A. microphylla were investigated. The outcomes revealed that the A. microphylla was the most effective in reducing BOD and COD from (30 to 78%) and (75 to 76%), respectively in the medium and small size within 2 weeks. The nutrients,nitrate (NO3-) and phosphate (PO43-) were removed 64% and 100% from swine wastewater in the medium and large, respectively within 3 weeks. Meanwhile, N, crude protein, and P were increased in biomass of A. microphylla from initial to final (1.65 to 2.41%), (10.3 to 15.04%) and (0.37 to 0.43%) in the medium and small, respectively. Furthermore, Cu and Zn were also up taken from swine wastewater 54% and 11%, respectively. Notably, Cu and Zn were increased in A. microphylla in respective around 22% (50 to 63 mg/kg), and 111% (112 to 249 mg/kg) in the large and small. The A. microphylla was very effective to remove BOD, COD, NO3-, PO43-, Cu, and Zn from swine wastewater 78%, 76%, 64%, 100%, 54%, and 11%, respectively, while N, crude protein, P, Cu, and Zn were attributed in the biomass of A. microphylla 2.41%, 15.04%, 0.43%, 22%, and 111%, separately. Hence, the A. microphylla not only reclaimed swine wastewater, but also produced biomass of itself in which a good source of nutrients, protein for feeding, fertilizer for sustainable agriculture. 
625030033-9 Mr. PHEARUN LAY [Main Author]
Agriculture Master's Degree

Peer Review Status มีผู้ประเมินอิสระ 
Level of Conference นานาชาติ 
Type of Proceeding Abstract 
Type of Presentation Oral 
Part of thesis true 
Presentation awarding true 
     Award Title Best oral presentation 
     Type of award รางวัลด้านวิชาการ วิชาชีพ 
     Organiser the PISAI Project 
     Date of awarding 12 มกราคม 2564 
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