[[File:BandungCocopeat2.jpg|thumb|right|200px|Institut Teknologi Bandung cocopeat filter]]
Below you find a series of case studies on the topic of cocopeat filters. The text derives from blog posts from the former website ''watsanexp.ning.com''.
=== Institut Teknologi Bandung (ITB) Launches Cocopeat Demonstration Project at their Bandung, Indonesia Campus ===
[[File:BandungCocopeat2.jpg|thumb|right|200px|Institut Teknologi Bandung cocopeat filter]]
The Institut Teknologi Bandung (ITB) in conjunction with RTI International launched their pilot scale cocopeat demonstration project this month (April) with the purpose of demonstrating low cost and sustainable wastewater treatment technology in Indonesia. According to team leader Dr. Rofiq Iqbal, "cocopeat materials are readily available in our country. In fact, they are highly available, and for our case, the manufacturer gave them to us for free. There are many coco fiber industries located near the shoreline, and in Java Island they are scattered throughout the region. If we can show that the technology is truly low cost and works well, it could be widely applied here in Indonesia to help us control our wastewater discharges".
Edeltech Engineering is also working on a simplified version of the unit that is lower profile and could be used for the simplest cocopeat applications. In this version, the tipping pan, showed at the far right right provides positive dosing from gravity flow. The cocopeat filter would be divided into two separate compartments with the tipping pan located over the division. The pan would tip to one side when full, and then the other side as the pan re-fills. This unit would also provide for intermittent dosing and enable the technology to help achieve very low cost installation.
This concept is represented in the drawing belowto the right.
''Editor's note: Special thanks to Md. Nazmul Hasan and his team at Edeltech Engineering for their work on these innovations. Edletech Engineering is located in Dhaka Bangladesh and is expert in fabricating electro-mechanical technologies in support of Bangladesh's growing environmental field. Photo: Mr. Abdur Rauf, a technician of Edeltech Engineering adjusts the dosing mechanism for intermittent dosing through gravity flow.''
#'''Preparing the site'''. Locate the site where the filter box will be constructed. The site should be in an area that is elevated slightly so that surface water from storm events will not flood the system. Once the site is selected, level it and place 5 cm or so of gravel or sand to prepare a firm foundation for the filter box.
#'''Size the filter box'''. We used the cocopeat sizing tool to determine the filter size. You can access that tool [[:File:Septictanksizingtoolwithcocopeatmodule.xlsx|hereSeptic Tank Sizing Worksheet]]tool to determine the filter size. From this tool, we determined the filter box size should be 2.4 meters square and 1.2 meters deep.
#'''Build the filter box'''. Filter boxes can be constructed out of lumber, hollow block, or other structural materials. We chose lumber as it was readily available. We used typical framing lumber and plywood to construct the filter box. We used nails and screws to secure the plywood to the frame so that it would last.
#'''Drilling the transfer hole'''. We drilled a hole just above the floor of the filter that would allow the collection pipe to pass through the filter. The purpose is so that the treated effluent can be collected and sent to the irrigation field. For this installation, we determined that the collection pipe would sit about 6 cm above the floor so that is the elevation we used to locate the hole.