Water Balance in a Refinery and Water Reuse Options: Building an Auxiliary Tool for Water Resources Management

2010 ◽  
Vol 5 (2) ◽  
Author(s):  
D. M. Nogueira ◽  
C. G. da Nave Mendes

The main purpose of this study is to conduct a survey on the detailed Water Balance of Paulínia Refinery, focusing all process units so as to allow its use as data basis for the management of water resources that are consumed there in different forms (natural water, process water, for the fire prevention system, drinkable, demineralized, steam etc,). The main result shows that 61.5% of the total water collected by the refinery does not reach the effluents treatment station, that is, losses occur during the processes, mainly due to the evaporation in the cooling towers, an intrinsic process factor. Another important identified aspect refers to the relation between equipment maintenance and the consequent water waste. Once these problems are solved, it is estimated that the collection could be reduced by 6.4% and the effluents generation by 16.9%.

2013 ◽  
Vol 7 (3) ◽  
pp. 379-385

The decrease of available water resources, the water quality degradation as well as the rapid increase of population combined with the growth of human activities, impose today the development of a science that concerns the Management of Water Resources. Lake Volvi faces a lot of problems, the most important being the water level drop, which is mostly due to the big quantities of water flowing through to Rihios River and to the wrong management of irrigation water. The study area of the present research consists of the watershed of Lake Volvi, situated in Northern Greece, 39 km away from the city of Thessaloniki. The objective of this study is the estimation of the water balance of the hydrologic basin of Lake Volvi with a Corporate Management program, using Visual Fortran and the creation of scenarios for better management of the water resources of the region. Lake Volvi is situated next to Lake Koronia, both of them belonging to a wider region that forms the geological basin of Mygdonia. Lake Volvi is the recipient of the water draining from Lake Koronia. The water that drains from Lake Volvi is discharged into the gulf of Strymonikos through Rihios River. Firstly, a close analysis is attempted for the estimation of the water balance of the entire hydrologic basin of Lake Volvi with the method of Turc, which is used widely throughout the world. Next, in order to simulate the lake, an administrative model is used, written in Visual Fortran. A rational management of the hydrological elements of the region is attempted with the creation of four alternative scenarios. After the execution of the Corporate Management program, the results show that the main problem for Lake Volvi is the water leaking to Rihios River. Moreover, the research also shows that it is important to reduce the water used for irrigation. As a final result, it is an imperative need to develop water resources management plans for the restoration of the entire region.


2013 ◽  
Vol 353-356 ◽  
pp. 2492-2495
Author(s):  
Xiao Na Guo ◽  
Sheng Le Cao ◽  
Cui Song Yu ◽  
Cong Qi Zheng ◽  
Jun Wang ◽  
...  

Reservoir warning is an important part of the red line of water resources development control. Based on the red line of total water in three red lines, this paper put forward firstly the quantitative method for determining water supply line and warning area of irrigation reservoirs, and presented the definition and method of irrigation reservoir warning. Taking the Douyazi reservoir in Jiaonan for example, early warning results based on warning period, which was divided into three months and non-flood season, were given. It provided technical support for implementation of the most strict resources management and sustainable development of the economic society.


2021 ◽  
Vol 325 ◽  
pp. 08007
Author(s):  
Muhammad Qodri Al-Ghozali ◽  
Tjahyo Nugroho Adji ◽  
Eko Haryono ◽  
Ahmad Cahyadi ◽  
Romza Fauzan Agniy ◽  
...  

The karst hills of Gombong Selatan have abundant potential water resources, especially in locations that have underground springs and rivers. The connectivity between the subsurface passageways that is difficult to know can threaten the potential of water resources, one of which is due to pollution caused by uncontrolled human activities. Therefore, identification of catchment systems and boundaries of water catchment areas in karst aquifers is needed that can contribute to sustainable water resources management policies. This catchment identification needs to be conducted because previous studies have never explored the eastern side of this karst area. This study aims to (1) define the underground river flow connectivity (upstream-downstream) of Banteng Cave; and (2) limiting the water catchment area of Banteng Cave. The method used to determine the subsurface connectivity system was carried out through an artificial tracer test, while the catchment area was delineated using a water balance approach. The results showed that the underground river of Banteng Cave has connectivity with Lake Blembeng, as evidenced by a change in watercolour after the tracer test and breakthrough curve (BTC) analysis of the tracing test results. BTC analysis shows that the Banteng Cave passageway has one main passage and does not have a tunnel branch. The estimated area of the Banteng Cave catchment used a water balance approach, which is 141.73 hectares. The Banteng Cave karst catchment conditions are dominated by the formation of valleys and karst cones accompanied by the appearance of valleys and karst hills that are quite evenly distributed, indicating that the Banteng Cave karst catchment is included in the advanced karst development phase. Furthermore, this research contributes significantly to increase knowledge regarding the characteristics of void karst development in aquifers which in the future are very important for determining water resources management policies.


2008 ◽  
Vol 3 (2) ◽  
Author(s):  
A. A. R. Arar

Jordan is situated in an arid to semi- arid zone with low and unpredictable rainfall. The country has an exceptionally low per capita water supply at less them 200 cubic meters per annum; one of the lowest on record world wide. This situation is exacerbated by increasing demand for water resulting from rapid growth in population due in part to the arrival of refugees and displaced persons, increased urbanization. improved standard of living and the continuing demands for irrigation. The gap between total demand and water supply is estimated by the Ministry of Water and Irrigation (MWI) at about 336 MCM in 2005 and this to increase to about 434 MCM in 2020. To minimize the negative impact of this shortage one of the country water strategy is to increase the water supply through maximizing the production of treated wastewater and its use for irrigation / industry and other suitable uses in order to protect the environment and to save fresh water for drinking purposes. At present 90% of the population are served by piped water and 65% by sewerage network with 22 treatment plants producing the equivalent to 10% of the total water resources. This will increase to reach, in 2020, about 18.6% of the total water resources. To ensure the implementation of the reuse projects successfully the country has created the Water Use and Environment Unit supported by the necessary legislative and institutional frame work and human resources development programme and by the establishment of the high level National Water Reuse Co-ordinating Committee, representing all those Concerned in the government agencies and the private sector.


2003 ◽  
Vol 79 (2) ◽  
pp. 301-306 ◽  
Author(s):  
Giovanni Callegari ◽  
Ennio Ferrari ◽  
Giuseppe Garfì ◽  
Francesco Iovino ◽  
Antonella Veltri

A study on the impact of silvicultural practices on the water balance was carried out in a watershed in Calabria, southern Italy, the prevalent cover of which is Calabrian pine stands. A thinning was carried out in 1993, which removed 50% of the total number of trees (about 30% of the basal area), and the catchment hydrological response before and after the intervention was compared. After thinning, differences were observed in yearly runoff, with a significant increase in groundwater flow during spring and summer. In light of this evidence, we assume that silvicultural interventions can contribute significantly to improve water resources management, particularly in regions with a long dry season, as in the Mediterranean area. Key words: Pinus laricio, runoff, small catchment, thinning, water resources management


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