Factors that affect the removal of nitrogen and phosphorous from piggery wastewater using microalgae –bacteria consortium - Ngo Van Chien4. CONCLUSION In this study, microalgae-bacterial consortium could be applied for wastewater treatment from piggery farm after biogas treatment process. After 20 hours of HRTs, removal efficiency of COD, NH4+_N and PO43-_P reached maximum at 71 %, 46 % and 77 % , respectively, under complete stirring condition, C/N was 4/1 and inoculum ratio of...
6 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 657 | Lượt tải: 0
Purification and characterization of laccase involved in the decolourization of synthetic dyes and 2,3,7,8-Tcdd congener degradation by the white rot fungus isolated from bavi forest of Vietnam - Phung Khac Huy Chu5. CONCLUSION The molecular weight of the purified laccase of strain FBV40 were 55 kDa and 60 kDa by SDS-PAGE. The optimum and stable pH for the enzymatic activity was 3.0 with ABTS. Kinetic constants Km and Vmax of Lac1 were 0.3 µM and 200,000 µM/mins. The decolourization efficiency of crude and Lac 1 are similar. This strain directly degraded...
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Photocatalytic degradation of formic acid inaqueous with Ni doped TiO2 coated on silicagel - Nguyen Thi Thanh Hai4. CONCLUSION In the present investigation, a study has been carried out on the photocatalytic degradation of formic acid by Ni doped TiO2/SiO2 nano-composite. The experiment results showed that catalyst samples had uniform nano size, anatase crystalline structure and the band-gap energy of Ni-TiO2/SiO2 (2.88-3.00 eV) was lower than that of TiO...
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Characteristics of household solid waste in Hue city - Tran Ngoc Tuan4. CONCLUSION The results of the research on 62 households over 7 days determined the generation amount of household solid waste in Hue city as 286±171 g/person/day, higher than that of 7 years ago (258 ± 163 g/person/day). Among 17 different groups, the two groups making up the largest amount were food waste (56.35 %) and garden waste (10.89 ...
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Using benthos to evaluate the quality of marine environment: Case study from central vietnam after the incident caused by formosa - Nguyen Thi Minh Phuong4. CONCLUSIONS Our study reveals that when the disaster in marine environment occurs, quantitative and qualitative investigations on benthic communities can effectively help to assess the quality of marine environment, with a reasonable budget, in comparison with chemical indicators. This finding can reduce the bias in assessing the quality of ...
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A review of seagrass studies by using satellite remote sensing data in the southeast asia: Status and potential - Nguyen Thi Thien Huong4. CONCLUSIONS The application of remote sensing images and GIS technology in mapping and analyzing of seagrass changes in the Southeast Asian countries are generally limited. Only few studies conducted in Cambodia, Myanmar, Malaysia, Philippines, Vietnam, and Thailand. Up-to-date, there has not any published documents related to the remote sen...
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Greenhouse gases emission in U Minh Thuong national park, Kien Giang province - Nguyen Thi Kim Thoa4. CONCLUSIONS Water in the Park was - polluted by organic matter, not suitable for domestic use (QCVN 08-MT:2015/BTNMT column A2). Soil of the U Minh Thuong National Park had low pH (fromGreenhouse gases emission in U Minh Thuong National park, KienGiang province 3.88 to 5.12), high total phosphorus (> 0.1 %P2O5) and strong reduction (from -1...
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The effect of green space on the land surface temperature in Hue city - Nguyen Bac Giang4. CONCLUSIONS With the support of multi-temporal Landsat OLI/TIRS images, field data and comparative approach were used to quantitatively examine the effects of green space on LST in Hue city. The results showed the urban green space has a significant cooling effect in both seasons. The difference of LST between occurrence and incurrence of ur...
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The methane uptake capacity of soil garden - Phuong Linh Ngo4. CONCULUSION The installation of rainfall exclusion roofs in the native garden led to a significant decrease of soil moisture at the surface and the top layers of the soil profile (top 15 cm). The decrease in soil moisture resulted in a corresponding increase in CH4 uptake in the soil which is comparable to other temperate eucalypt forest stu...
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Precipitation scenarios in Ho Chi Minh city in the context of climate change - Nguyen Ky Phung4. CONCLUSIONS Based on the CSIRO-MK-3-6-0 model, by SimCLIM software, this research established precipitation scenarios in HCMC to 2100. By over the time and under the RCPs (RCP2.6 - RCP8.5), the average annual precipitation in HCMC would increase: 13.4 - 24 % by 2100 as compared to that in the period of 1986-2005 (1812 mm). The rainy season p...
7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 662 | Lượt tải: 0
