Adsorption Treatment for Arsenic

Posted by Kevin Smith
7
Apr 13, 2017
98 Views

Wondering which of the many types of arsenic water treatment systems is appropriate for your site and application? If so, you're probably familiar with the various types of treatments available. Just in case you're new to the arsenic treatment technology currently available, the most popular approaches are adsorption, coagulation and oxidation. Each has their own benefit for different needs.

 

Types of Technology

 

In general, coagulation and oxidation are systems with high flow capacity and specific applications. They are certainly viable alternatives, but the adsorption method is largely held to be the industry standard in arsenic removal from water supplies for schools, municipalities and housing developments.

 

Active Ingredients

 

The primary component of adsorption filtration systems is the media used. In this case, media means a granular substance with a positive ionic charge that causes negatively charged ions, such as arsenic, to bond with the substance. There are many different types of materials used as absorption media by filtration system manufacturers, but the most common are aluminum and iron based sorbents. Iron is particularly effective, as it is an extremely common material and its positive ionic charge makes it ideal for attracting arsenic. In fact, most iron adsorption systems have an effectiveness of up to 99% arsenic removal. Another benefit of iron is that used media can often be disposed of as simple solid waste in most municipalities. Other media, such as aluminum titanium and zirconium also have benefits. Nevertheless, iron is generally used in most industry standard media.

 

How Adsorption Works

 

The adsorption process functions because of a precisely engineered system to contain the media. There are two major factors that contribute to the effectiveness of one of these systems. The first is incoming pressure of tainted water. The incoming pressure determines the flow rate, so valves have to operate efficiently and precisely to ensure that arsenic removal targets are met. The second factor of adsorption engineering is the capacity of the chamber. The chamber capacity will determine various factors that contribute to the performance of the arsenic removal system.

 

Additional Benefits

 

Adsorption systems are also effective in the removal of other toxins. If your water supply is tainted with heavy metals such as lead or antimony, then you will be able to apply one technology to address all of these issues at once. These arsenic water treatment systems are also scalable. They can be integrated with other treatment equipment to meet compliance standards, and they are effective in a broad water chemistry range. The final point in their favor is their low maintenance requirements and the ease of their operation. That means they require less expertise from operators and fewer visits from maintenance professionals.

 

There are many ways diverse organizations can benefit from installing iron absorption systems to treat arsenic in the water supply. These arsenic water treatment systems are proven in the real world to be low maintenance ways to address toxic chemicals. They also have wide-ranging industry support, leading to an increased pool of qualified operators and a wider availability of adsorption media. For more information on whether or not this system might be applicable to your operations, it's recommended to talk to a company that offers this technology for sale.

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