Beyond the Water Environmental Management in the Operational Building Phase for Its Application to the Peruvian Context

The world population is expected to be 9.3 billion by 2050, with a high increase in the urban population. It is worth considering that 71.7% of the surface of the earth covered by water, but only 3% of this water can be used as drinking water. In cities, buildings are recognized as one of the largest users of freshwater resources in construction and operation. The water use impact is different in some countries because some use conventional water treatments while other ones rely on advanced desalination. Climate change and population growth are clearly putting pressure on the world's water supply, so the first environmental assessment plan for buildings was launched in 1990 by the BRE in the United Kingdom where the water category is included in its environmental assessment.

Water environmental protection in craft villages of Vietnam

Craft villages are a unique feature of rural Vietnam. They play an important role in rural social - economic development and contribute to industrialisation and modernisation processes. Craft village development contributes to poverty alleviation and hunger eradication in rural areas, provides jobs in leisure time, improves incomes and quality of life etc. However, the sustainable development of craft villages has yet to receive due attention from legislation and administrative authorities at all levels. Unlike many countries in the world, craft villages in Vietnam are not only associated with the preservation of cultural values but also exist as industrial clusters. Based on traditional activities, craft villages of Vietnam are characterized by small-scale level, manually operated equipment and backward technologies, low material/fuel efficiency, suffered limitations of manufacturing space and possessed insufficient awareness on environment and health protection of the people. Because of this, a number of the activities of the craft villages have imposed pressure on their respective environments, and the surrounding communities, especially water environmental pollution. This article focuses on the challenges of water environmental protection in craft villages of Vietnam; It also provides shortcomings in water environmental management in craft villages and recommendation to amend and supplement regulations and mechanisms related to water environmental management in craft villages in Vietnam.

Application of Export Coefficient Model and QUAL2K for Water Environmental Management in a Rural Watershed

Water quality deterioration caused by excessive nutrient discharge from various point and non-point sources are a global challenge. Understanding the pollution sources and their respective contribution is the prerequisite for environmental planning, management and restoration. In this study, the influence of complex pollution sources on the water quality of the Dengsha River watershed in Dalian, China, was investigated. The export coefficient method was coupled with the QUAL2K water quality model to estimate the loads of ammonia nitrogen (NH4-N) and total phosphorus (TP) from different sources, and to explore their respective contributions. Results indicated that animal feedlot and crop production were major sources for NH4-N load, and crop production, soil erosion and animal feedlot are the largest three sources of TP load with an annual total contribution of 98.4%. The pollutant load exhibited an intra-annual variation mainly due to the seasonality of rainfall and anthropogenic agricultural activities. The overall waste assimilation capacity (WAC) is overloaded and suggestions for water pollution control and treatment regarding each pollution source were proposed. This study addressed a new application of QUAL2K model coupled with the export coefficient model for watershed managers towards a sustainable water environmental management, and can therefore be a reference example for other small and medium-sized rural watersheds.

Assessment of Surface Water Quality of Noyyal River Using Wasp Model

The Noyyal River is a tributary of river Cauvery has been one of the most predominant and important rivers of Tamil Nadu. Unfortunately, certain stretches of river Noyyal are polluted due to effluent discharge from the industries and domestic sewage. The effective water environmental management strategies required to be implemented in this river to upgrade the water quality and to ensure sustainable development in the region. The aim of this work was to provide a basis for water environmental management in process of making important decisions. In this study WASP (Water Quality Simulation Program) is used as a model to identify the processes that underlie river water quality problems in a basin. WASP was recommended by EPA used as water quality model. Simulated values of Nitrate (NO3), Dissolved Oxygen (DO), Total Dissolved Solids (TDS), Alkalinity and pH demonstrated the accuracy of the model and despite a significant data shortage in the study area. WASP model was found to be an acceptable tool for the assessment of water quality.