Activated sludge treatment has many challenges that one of the biggest being the footprint it demands. Activated sludge plants are costly to construct and occupy substantial land areas. Primary and Secondary processes rely upon vast tracts of land for large and costly settling tanks and aeration basins. Due to high populations constantly increasing, municipal wastewater treatment plants need to expand their capabilities. Advanced technologies that use smaller process basins by increasing the amount of biomass per unit volume via the addition of media for biofilm attachment (such as IFAS and MABR) or increasing the biomass concentration (such as
Human population is increasing and it causes transformation of natural ecosystems into human landscapes. Human settlements, the need for farmland and, especially, industrial areas and large urban areas significantly modify their environment. Changing from permeable and moist land uses to impermeable and dry one with paving and building material can have a
Another cause of deforestation is the high demand for land that people need for putting up homes. Deforestation is also caused by the need for farmland. One effect that deforestation causes is global warming. Another effect of deforestation is the impact on the environment. Organisms that live in the forests are also affected
Rapid urbanization along with increasing industrial, economic and commercial development, have given rise to an increased generation of various types of waste. The amount of waste generation rates is related with the socio-economic development, degree of industrialization and climate. Generally, the larger the economic growth and increase in the percentage of urban population, the greater amount of solid waste is produced. For the municipal planners, n recent years, the management of solid waste continues to be one of the major issues due to rise in population levels. Without damaging the ecosystem and human population, planners are thus forced to consider alternate and available means of waste management.
Britain experienced change in all aspects of life during late 18th and early 19th centuries. As the results, this century was known as Industrial Revolution. Advances and technological innovation lead to in agricultural revolution and industrial production. Plus, economics expansion and changing in living condition was also happen and sense of national identity and civic pride become more eager in community. Moreover rural areas became urban and industrialized following advances in agriculture, industry and shipping .
Migration is an integral feature of demographic transition. The process of migration changes the size and the structure of population. It affects both the place of origin and destination of migrants. Migratory movements are considered as physical events shaped by environmental forces. Migratory movements are caused due pressure on land because of rapid growth of population, decline in rural industries and handicrafts, lack of employment and livelihood etc.
The amount of food waste generated has increased overtime this is due to various factors such as increase in income/buying propensity, population growth, and standard of living etc. food waste is an energy resource created which are being disposed BIOGAS The breakthrough of finding biogas can be first traced back to the 17th century when Van Helmot noticed flickering lights beneath the surface of swamps and connected it to a flammable gas produced by decaying organic matter. In the scientific world, Volta noted as early as 1776 that biogas production is a function of the amount of decaying plant material and that the biogas is flammable under certain conditions. The chemical composition of methane was established by Henry and Davy Dalton in 1810 via methane from coal mines. This was soon linked to the biogas involved in 1 Volta’s scientific discussion.
Due to the fast economic development and urbanization , the generation of solid waste has significantly increased worldwide . In general , increased population growth and rising consumer choices have led to a larger production of waste worldwide . Successful waste management requires accurate data. Construction and demolition (C&D) waste, which already comprises the largest waste fraction in industrialized countries (Schachermayer et al., 2000), is expected to increase in the future. Studies from the Netherlands (Muller, 2006) and Norway (Bergsdal et al., 2007) show this trend for countries of the European Union, Hashimoto et al.
Wastewater discharges with high nutrient loads from diffuse sources such as run-off from livestock feedlots or agricultural land fertilized with organic and inorganic fertilizers are becoming common sources of water pollution. Due to expansion of populations in urban areas urbanization and water pollution is closely linked. Specially in developing countries untreated urban waste is a prime source of water pollution. Due to many such reasons water quality rarely remains static and vary at spatial and temporal scales. Water quality data are essential in many situations such as for effluent description, when monitoring health of aquatic environments and to develop management programs and action plans to protect water resources.
Land development activities in Malaysia have impacts on the environment. With the world growing at a pace hard to match, the increasing need for space is turning out to be an area of concern. With desperate need for land for agriculture, industrial and most importantly urban needs to contain cities and their growing population, a direct action that we have come to recognize as “Deforestation” occurs. Deforestation in simple term means the felling and clearing of forest cover or tree plantations in order to accommodate agricultural, industrial or urban use. It involve permanent end of forest cover to make that land available for residential, commercial or industrial purpose.