Water supply systems

The authors applied the desk-study method to collect and review literature research, select a group of six criteria, and then applied the criteria to assess the system's sustainability based on Likert's 3-point scale. The results show that criteria scores ranged from 1.9 points to 2.5 points, while the total score of the whole system is 12.9 points - reaching an average sustainability level.

11p vibecca 01-10-2024 2 2   Download

In Vietnam, there have been some studies on desalination but mostly on low and stable salinity and small-scale system. In fact, the salinity varies quite substantialy within seasons. Thus, the main objective of this study is therefore to evaluate the brackish water treatment capacity of different nanofiltration (NF) processes for domestic and drinking water supply for residential areas in Thu Bon river basin.

7p viyoko 24-09-2024 3 1   Download

Greenhouse Gas emission from high-rise buildings has been increasing mainly due to excessive energy consumption of the HVAC system, structural system and electrical system. In this study, a lab-scale experiment was conducted to test the electricity consumption in applying different design approaches; the energy efficiency of the system was calculated.

9p viyoko 24-09-2024 1 1   Download

This paper aims to contribute to a better understanding of the shear behavior of reinforced concrete beams with openings in the shear span, strengthened with Carbon fiber-reinforced polymer (CFRP) sheets.

11p vifaye 20-09-2024 1 1   Download

The following boundaries are considered in pursuing the proposed research study: This study is conducted on an experimental basis; Domestic hot water supply using evacuated tube solar thermal collectors has been selected as the applied context for this study; Paraffin has been chosen to be used as a PCM for this study due to its attractive techno-economic properties for use with solar thermal systems in domestic hot water applications; The effect of scale factor is not studied; The effect of the shape of the PCM container is not investigated in this study.

102p runthenight04 02-02-2023 4 2   Download

The purpose of this research was to investigate the technological feasibility of biological filtration process for Mn control in Lorne WTP. This thesis consists of eight chapters. Project background and research objectives are described in Chapter 1. Chapter 2 presents an extensive literature review covering the nature of manganese, manganese analytical methods, manganese control methods, the nature of MOB and biological control of Mn in drinking water treatment. The materials and methods used throughout the experimental investigation for this study are described in Chapter 3.

119p runthenight04 02-02-2023 5 3   Download

The purpose of this study was to investigate the operation of the Hoabinh reservoir in the Red River Basin of Vietnam, and assess the room for its improvement by application of system analysis and optimal control techniques. The study aimed at establishing a foundation for further research on inter-reservoir regulation of the Basin. Finally, this study provided a testing ground for developing and comparing dierent reservoir optimization methods.

138p xuanquachthi 08-06-2013 104 5   Download

As the global population grows and many developing countries modernize, the importance of water supply and water treatment becomes a much greater factor in the welfare of nations. In similar fashion, the need to address both domestic and industrial wastes generated by these nations moves higher on the scale of importance. Clearly, in today’s world the competition for water resources coupled with the unfortunate commingling of wastewater discharges with freshwater supplies creates additional pressure on treatment systems....

1357p tuananhhumg 13-10-2012 128 51   Download

Rau quả đóng một vai trò đáng kể cho nông dân có số lượng lớn các hộ gia đình nông thôn đã được tham gia vào sản xuất rau và thương mại. Tuy nhiên, Việt Nam đang phải đối mặt với một số thực tế vấn đề sau thu hoạch đặc biệt là sản xuất rau đã-được nhanh chóng qua tăng cuối thập kỷ. Các tổn thất sau thu hoạch vẫn còn rất cao với 25-30% trung bình do Điểm yếu công nghệ sau thu hoạch. Ngay cả với đầu vào lao động cao trong sản xuất rau, revenu của nông dân vẫn còn thấp....

5p xau_la 09-02-2012 75 9   Download

The closed engine test cell system makes a suitable case for students to study an example of the flow of heat and change in entropy. In almost all engine test cells the vast majority of the energy comes into the system as highly concentrated ‘chemical energy’ entering the cell via the smallest penetration in the cell wall, the fuel line. It leaves the cell as lower grade heat energy via the largest penetrations: the ventilation duct, engine exhaust pipe and the cooling water pipes.

20p hiruscar 25-10-2010 106 18   Download

In most HVAC systems, the final energy transport medium is moist air—a mixture of dry air and water vapor. This is conveyed through filters, heat exchange equipment, ducts, and various terminal devices to the space to be air-conditioned. The power to move the air is supplied by fans. This chapter discusses fans and duct systems, together with related subjects such as grilles, registers, diffusers, dampers, filters, and noise control.

50p babyuni 16-08-2010 144 32   Download

To understand what are the main reasons to cause the disease and dead off on the marine shrimp culturing system in Mekong coastal areas, the survey on 14 sites was carried out in five hamlets of Baclieu province. The physical, chemical and plankton factors in the groups of water body such as dead shrimp ponds, stronger shrimp ponds and water supplied systems were sampled.

0p haivan 16-03-2009 419 39   Download

The Mekong River Delta (MD) in Vietnam has an area of 4 million hectares. The economical production in this region is highly dependent on water from the river and canal system. More than two-third of 17 million inhabitants of the MD live in rural areas and depend totally on the water resources for rice, upland crop irrigation, aquaculture of fish and shrimp, domestic drinking and industrial water supply and for transportation on rivers and canals

0p haivan 16-03-2009 221 32   Download