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Material flow analysis and energy balance analysis as technical tools for wastewater pollution control in textile and dyeing industry – A case study
Abstract. Quantification of material flows and energy balance in production lines as well as in waste management systems and illustrative presentation of the flows are useful tools for decision making in both cleaner production and pollution control. In this study, using STAN software, the authors have analyzed the material flows, and, using SAN...
10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 514 | Lượt tải: 0
Quantification of pollutants mass and energy consumption as a tool for industrial wastewater pollution control in steel industry
Abstract. Quantification of mass flows in production lines and waste treatment lines, as well as quantification of energy consumption at a factory is always challenges in cleaner production and pollution control decision making. The case study has conducted at a representative steel making complex in Vietnam, simulating the material flows of wat...
13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 570 | Lượt tải: 0
Willingness-To-Pay for water service of people in a coastal commune – A case study in Vinh Xuan commune, Phu Vang district, Thua Thien Hue province
Abstract. Nowadays, clean water plays a vital role in the life but many inhabitants in Vinh Xuan, a coastal commune (Thua Thien Hue, Viet Nam), are facing the clean water shortages. This paper presents the results of water use situation, Willingness-To-Pay (WTP) and analysis of the factors affecting WTP for water service of residents in Vinh Xua...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 435 | Lượt tải: 0
Assessment of usage conditions of septic tanks in Ha Noi and Hai Phong
Abstract. The study had been conducted in 2017 - 2018 to generate usage conditions of septic tanks in Ha Noi and Hai Phong through: (1) collecting information on usage condition of septic tanks by interview survey; and (2) obtaining analytical results of wastewater inflowing to and out flowing from the septic tanks selected by interview survey r...
7 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 448 | Lượt tải: 0
Fixed-bed column adsorption of fluoroquinolone antibiotic from aqueous solution onto sugarcane bagasse biochar
Abstract. The ability of the agricultural residue of sugarcane bagasse to serve as an absorbent material used to remove Ciprofloxacin (CIP), one of strong Fluoroquinolone antibiotic from aqueous solutions in fixed-bed columns was investigated. The properties of biochar sugarcane bagasse were characterized using scanning electron microscopy (SEM)...
12 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 449 | Lượt tải: 0
Treatment efficiency of piggery wastewater by surface and horizontal subsurface flow constructed wetlands
Abstract. Constructed wetlands (CWs) have been used to treat various types of wastewaters such as urban runoff, acid mine drainage, municipal, industrial, and livestock wastewaters. This study was conducted to evaluate the effectiveness of two constructed wetlands (surface and horizontal subsurface flows) for piggery wastewater treatment after b...
9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 460 | Lượt tải: 0
Forecast of water quality of To Lich river based on scenarios of Ha Noi sewerage planning by using model QUAL2K
Abstract. To Lich River is well-known as a main drainage river and plays a vital role to the landscape distribution of Ha Noi city, which is currently polluted due to improperly untreated wastewater flow. Thanks to QUAL2K model, the variation of the river water quality has been forecasted by 4 particular scenarios. In the first scenario, the who...
9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 507 | Lượt tải: 0
Heavy metals contamination in groundwater resource in Dak Nong province, Viet Nam
Abstract. This study aims to understand the concentrations of selected heavy metals including arsenic, iron, manganese, cadmium and mercury in groundwater used for domestic purposes in Dak Nong Province of Viet Nam. A total number of 572 groundwater samples including 61 duplicates were collected during October, 2018 – April, 2019. The collected ...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 590 | Lượt tải: 0
Evaporation measurement from free water surface
Abstract. This paper aims to quantify the amount of water surface evaporation with special regard to the EWM evaporation pan and to relate the direct measurements to the Penman and other empirical equations. Based on the available 10-minute interval data on the EWM pan evaporation and the data on precipitation for the same intervals, the net wat...
13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 495 | Lượt tải: 0
Sea surface temperature trends and the influence of ENSO on the southwest sea of Vietnam using remote sensing data and GIS
Abstract In this article, the sea surface temperature trends and the influence of ENSO on the southwest sea of Vietnam were analyzed using the continuous satellite-acquired data sequence of SST in the period of 2002– 2018. GIS and average statistical methods were applied to calculate the average monthly and seasonal sea surface temperature, the...
13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 524 | Lượt tải: 0