Essays on Effluents

Eutrophication is the phenomenon caused by the increasing amount of nutrients in the water bodies which results to the decrease in the oxygen concentration and death of aquatic animals. The main nutrient which commonly caused eutrophication in some of the water bodies is the phosphates. In this process, nutrients from soil are carried to the water bodies through erosion (Chislock et al., 2013). The high amounts of nutrients in the water bodies results to the increase in aquatic plants and algae such as the phytoplankton. The decay of these plants and algae converts oxygen to other by-products resulting to ...

Technology is a sign of modern life, in other words, one cannot define the contemporary life without technology. Every area and space in human life that is from entertainment, transport, finance, communication sports and engineering influenced and dictated by technology. If one could dare take a panoramic view and a flash of the past time when we did not have electricity, cell phones, when grandparents could tell the tale of life one can see the grave transformation in the way of living (Jadhav et al 25). The innovation and creativity in various areas and fields has amounts substantial work ...

Introduction

In spite of the contribution of urbanization to the economic growth in Zhejiang, its adverse effects far much outweigh the positives since sustainability of the ecosystem and the society is at stake. Environmental concerns, particularly air pollution, are real threats to the ecosystem since they lead to increased atmospheric temperatures which in turn result in climate changes. Urbanization contributes to pollution through higher energy consumption and motorization that have resulted in higher volumes of greenhouse gasses emitted in the air. The shrinking of natural resources is another consequence of urbanization where there is the rampant destruction of natural habitats, ...

The issues faced by the Indian River Lagoon is quite similar to that of many rivers, lakes, and even oceans from various locations of the world. The steady decline in the marine population of the lagoon escalated to alarming rates by the end of the last decade. A few legislations that were passed in the early nineties to limit trawling in the estuarine region and as well as the direct dumping of untreated sewage wastes, had proved effective in the past. But later into the decade, the rescue efforts to salvage the lagoon and the ecosystem associated with it, ...

Abstract- Literature 1

Edible oil refinement is one of the major problems faced by the developing countries across the world as edible oil effluents are a major source of environmental pollution. Owing to this, it is essential to ensure that the effluents are treated prior to its disposal. The composition, characteristics and quantity of the waste water generated depends on the operating conditions and processes followed and can vary from different organizations in the same industry. An investigative method comprising of an in-depth study of unit operations, monitoring, measurement and analysis of parameters affecting environment, and performance evaluation of utilities and pollution ...

Pollution in Bishumati River in Nepal (photo courtesy of NTNC)

N epal has experienced rapid growth and urbanization in Nepal is on an upward trend. However, the effect of the increase in human population in the urban areas and the discharge of untreated industrial effluent into water sources has led to pollution of rivers in Nepal (Bajracharya & Newton, 2006). Currently, pollution of water is the most serious issue on public health. Many studies conducted in Nepal have shown that public water supply is of poor quality since the water is contaminated with bacteria. The major sources of water pollution in Nepal have been identified as physical pollutants which are ...

in the industrial and infrastructure sector

Abstract

In most parts of the Arab countries, the limited resources of water pose adverse constraints to both the social and economic development, while also threatening the people’s livelihood. The available surface water keeps on declining, and the ground water over-pumping that goes beyond the natural recharge rates has continued to cause great negative impact in the lowering of water table. Over-pumping of ground water also increases ground water salinity, ground water depletion, and ecological degradation (SCENR 5). The outcome prompted the Qatar government to start regulating its water resources as a measure ...

The earth is considered to be a home for a billion people along with animals and another organism. A single person would take twenty thousand breaths a day. But is the air that we are breathing clean? Water is considered to be a source of life. But is the water that we drink clean? As children, we grew in a much safer and cleaner environment. But is the environment as clean and safe today? The growing population is considered to have direct impacts on the environment. Environmental pollution has increased 10-fold over the past decade. The grieving situation of planet earth is to be ...

EXAM QUESTIONS ON BUSINESS AND SOCIETY

1. To what extent are companies justified in claiming that they are good corporate citizens? The key goal of any business enterprise is to maximize profits and minimize cost. The management must safeguard the social welfare of the employees. In addition, the company must respect the social and cultural values as well as providing quality products and services to the consumers. Therefore, corporate citizenship is the understanding of all stakeholders in a company or business enterprise that it has social responsibilities to the employees, the surrounding society and the consumers, who indirectly influence the company’s performance in regional ...

Abstract

The present paper examined water quality and contamination. The three experiments were conducted to find the effects of different pollutants on groundwater, processes of water treatment, and quality of bottled water. The contamination of groundwater was observed to evaluate the result of vitiating environment that has to be protected to ensure a safe future for the progeny. Water treatment processes have to be effective as well as economical, so that people in general worldwide can be benefitted. Treatment method like filtration has researched out for the benefit of people at large. Bottled water was analyzed considering safe for drinking. The ...

Dissolved Oxygen

INTRODUCTION Dissolved oxygen is a useful parameter used to determine the level of effluent in waste water treatment. Living organisms in water bodies require oxygen to break down organic matter. These organisms consume the dissolved oxygen in water and give out carbon dioxide. Oxygen does not readily dissolve in water and gets depleted quickly by increased micro-organism activity. To maintain optimal oxygen levels in a water body, the oxygen replenishing rate from the air should be equal to dissolved oxygen use by micro-organism in the water. A curve drawn to represent dissolved oxygen levels down a stream from a point of effluent ...

Food security remains one of the challenges facing the world today. Nations across the globe have embraced mechanized agriculture, which encourage use of synthetic fertilizers, reclamation of wetlands, and use of chemicals thus interfering with soil fertility, marine life, ground water, and estuarine environments. Synthetic fertilizers contain high levels of nutrients such as nitrogen, calcium, ammonia, phosphate, phosphorus, and magnesium, which increase crop yields and maturity. However, prolonged use of synthetic fertilizers has detrimental effects on the environment as it alters nitrogen cycle and facilitates accumulation of nitrogen compounds in water, soil, and atmosphere. Large amount of nitrogen in ...

Background

Over the past 100 years, more than 60 percent of world’s wetlands have been destroyed as people search for land to settle on, farm, and establish other types of business investments. Currently, wetlands cover 6 percent of the world’s surface providing a wide array of environmental services, including soil erosion control, water storage and filtration, a buffer against flooding, biodiversity maintenance, nutrient recycling, nursery for fisheries, and carbon storage among others.

However, destruction and drainage of these ecosystems has led to large amounts of carbon emissions equivalent to 40 tons of carbon per hectare per year for degraded swamp ...

In the mining of gold, cyanide has been the preferable lixiviant globally since the year 1887. Even though, cyanide can be spiflicated and reclaimed by a number of processes, it is still extensively discussed and analyzed because of its possible toxicity as well as impacts on the environmental. Biological cyanide treatment is a well-set up procedure and has been commercially applied at gold mining procedures in various parts of the world. Biological treatment procedures alleviate microbial growth that is necessary for the treatment (Akcil & Mudder, 2003). In biological cyanide treatment, bacteria change free as well as metal complexed cyanides to ...

History

The journey of humanity from a hunter-based economy to a more comprehensive system of living has enacted diverse nuances that constitute urbanization. The encroachment of urban settings began early enough as people started harboring as many as 5000 people. The hunter and nomadic lifestyles changed drastically. There emerged new systems in all aspects of their lifestyles. Essentially, the increase in people proportions had different effects on the people. A variety of advantages and problems cropped that needed immediate attention. This essay attempts to outline a variety of challenges that emerged in the event of increased urbanization. The dominant problem that occurred ...

Pollution is the process of introduction of contaminants in the environment. These contaminants lead to a negative impact to the living things in the environment. The original condition of the environment is made harmful to the living things. Pollution can be of different forms. The main pollution forms are the air, water and soil pollution. The intent of this paper is to discuss the air and water pollution, elaborating on their causes or pollutants and description of their effects on living things. Specifically, the paper will discuss the air and water pollutants and their possible remedies. The air and water ...

E-waste or electronic waste refers to all forms of electrical and electronic equipments that have entered the waste stream. Electronic equipment could cover items such as televisions, mobile phones, computers, and other white goods such as fridges, dryers, and washing machines among others (Stephenson 67). Other household items that have an electronic connection such as toasters, kettles, and gas cookers among are considered electronic waste. When these equipments are no longer useful and are discarded, they are categorized as electronic waste. In case electronic waste is not properly managed, e-waste poses dangerous environmental and health effects to human beings. ...

Introduction

Drilling for oil is a hazardous job that can sometimes created massive environmental disaster. Because of the high marketable profit that oil offers safety laws are ignore at crucial times. Consequently, oil spills among other accidents happened destroying ecosystems, harming animal life and sometimes human loses. Oil spills not only harm animal life but can also destroy the economy of a given region and create physical and psychological problems for the residents of those areas. Deep Water Horizon oil spill in the Gulf of Mexico is one among many spills that have become history because of its horrific effect on animal ...