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Publication
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| Research Title |
Reuse of Piggery Wastewater for Cultivation of Azolla microphylla for Sustainable Agriculture and Environment |
| Date of Distribution |
15 May 2021 |
| Conference |
| 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 |
| Volume |
- |
| Issue |
- |
| Page |
76 |
| Editors/edition/publisher |
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| 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. |
| Author |
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| 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 |
| Attach file |
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| Citation |
0
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Journal Publication
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