Wastewater Engineering: Issues, Trends, and Solutions

Wastewater treatment is an essential process to remove pollutants from wastewater and make it safe for reuse or disposal. There are different types of wastewater treatment technologies available, including physical, chemical, and biological methods. Emerging contaminants sources include pharmaceuticals, personal care products, and agricultural chemicals. Sampling and analysis methods include grab sampling, composite sampling, and analytical chemistry. Treatment methods include sedimentation, filtration, and disinfection. Rules and regulations on wastewater engineering and standards for wastewater disposal or reuse vary by country. Wastewater can be used as a resource in the context of the circular economy by treating it and reusing it for various purposes, such as irrigation, industrial processes, and drinking water.

Format: Hardback
Length: 330 pages
Publication date: 24 July 2023
Publisher: Taylor & Francis Ltd

The treatment of wastewater is a complex and multifaceted process that is essential for maintaining the health and well-being of both humans and the environment. Across the world, there are a variety of wastewater treatment scenarios that are in use, each tailored to the specific needs and challenges of the local area. In this article, we will provide an overview of current wastewater treatment scenarios across the world, including insights into emerging contaminants sources, procedures to sample, available methods for analyses, and possible treatments.

Emerging Contaminants Sources:

One of the biggest challenges facing wastewater treatment is the increasing presence of emerging contaminants. These contaminants are not typically found in traditional wastewater streams and can have significant impacts on the quality of water and the environment. Some of the most common emerging contaminants include pharmaceuticals, personal care products, pesticides, and heavy metals.

Procedures to Sample:

Sampling is an essential step in the wastewater treatment process, as it allows for the identification and quantification of emerging contaminants. There are a variety of sampling procedures that can be used, depending on the type and concentration of the contaminants present in the wastewater. Some common sampling procedures include grab sampling, composite sampling, and continuous sampling.

Available Methods for Analyses:

Once the samples have been collected, there are a variety of methods that can be used to analyze the contaminants present in the wastewater. These methods include chromatography, spectroscopy, and microbiology. Chromatography is a widely used method for separating and identifying contaminants, while spectroscopy is used to identify the chemical composition of contaminants. Microbiology is used to identify and quantify the presence of bacteria and other microorganisms in the wastewater.

Possible Treatments:

There are a variety of possible treatments for wastewater, depending on the type and concentration of the contaminants present. Some common treatments include physical treatments such as sedimentation, filtration, and disinfection, as well as biological treatments such as activated sludge, biofiltration, and bioreactors. Physical treatments are used to remove large particles and contaminants from the wastewater, while biological treatments are used to break down organic contaminants and remove nutrients from the water.

Existing Rules and Regulations on Wastewater Engineering and Standards for Wastewater Disposal or Reuse:

There are a variety of existing rules and regulations on wastewater engineering and standards for wastewater disposal or reuse. These rules and regulations are designed to protect the environment and public health and ensure that wastewater is treated and disposed of in a safe and effective manner. Some of the most common rules and regulations include the Clean Water Act, the Environmental Protection Agency (EPA) regulations, and the European Union (EU) regulations.

How to Use Wastewater as a Resource in the Context of Circular Economy:

In recent years, there has been growing interest in using wastewater as a resource in the context of the circular economy. This involves treating wastewater and using the resulting water for a variety of purposes, such as irrigation, industrial processes, and drinking water. Using wastewater as a resource can help to reduce the demand for fresh water and reduce the environmental impact of wastewater treatment.

Fundamentals of Wastewater Conveyance and Treatment:

The conveyance and treatment of wastewater is a complex process that involves a variety of components, including pipes, pumps, and treatment plants. The conveyance system is designed to transport wastewater from the source to the treatment plant, while the treatment plant is designed to remove contaminants and treat the wastewater. The treatment process involves a variety of steps, including screening, sedimentation, filtration, and disinfection.

In conclusion, the treatment of wastewater is a complex and multifaceted process that is essential for maintaining the health and well-being of both humans and the environment. Across the world, there are a variety of wastewater treatment scenarios that are in use, each tailored to the specific needs and challenges of the local area. In this article, we have provided an overview of current wastewater treatment scenarios across the world, including insights into emerging contaminants sources, procedures to sample, available methods for analyses, and possible treatments. We have also reviewed existing rules and regulations on wastewater engineering and standards for wastewater disposal or reuse and discussed how to use wastewater as a resource in the context of the circular economy. Finally, we have described the fundamentals of wastewater conveyance and treatment.

Weight: 800g
Dimension: 234 x 156 (mm)
ISBN-13: 9781032399751