Wastewater treatment for a hotel

ClearFox® SBR system in an underground concrete tank for wastewater treatment for a hotel

Hospitality

Wastewater treatment for a hotel

ClearFox® SBR system in an underground concrete tank for wastewater treatment for a hotel

Hospitality

Project Details


Size 1000 PE
Location Kenya
Completed 2019

Project Delivery


Features New construction of a wastewater treatment plant
Purification for direct discharge
Treatment Modules ClearFox® SBR System

Project Results


Before After
COD 700 mg/l 60 mg/l
BOD 350 mg/l 30 mg/l

Discussion


Situation

Especially in Kenya, wastewater treatment for a hotel plays a crucial role. A customer from Kenya enquired about a wastewater treatment plant that would treat the wastewater of 1000 people. This comes from different sources: In addition to the guest rooms, the hotel operates a conference centre, a banquet hall, a restaurant, and accommodation for the employees.  

All year round, about 150 m³ of wastewater are produced per day. This is produced both in the accommodation for the guests and the staff and in the kitchen of the restaurant. Therefore, fats and oils are also mixed into the wastewater, which additionally increase the COD and BOD5. While the chemical oxygen demand is 700 mg/l, the biological oxygen demand comes to 350 mg/l. 

Problem

Wastewater disposal in Kenya is rudimentary. While there is almost no wastewater treatment in rural areas, the country is steadily expanding urban wastewater treatment. Nevertheless, only about 15 percent of the country is currently connected to a sewage network. Most of the wastewater flows untreated into the environment. For this reason, the country is struggling with ever-increasing pollution of rivers and lakes. The country’s own wastewater treatment is therefore a decisive step towards protecting the environment. 

For this reason, no wastewater treatment system existed on site yet. The ClearFox® engineers had to work with the conditions on site and adapt the solution based on the customer’s data. As the treatment plant was to be installed underground in a concrete tank, the ClearFox® team contacted local tank manufacturers on site and had the tanks made according to their wishes.

Solution

For this project, PPU designed a ClearFox® SBR system for two underground concrete tanks. One tank serves as a buffer for the wastewater produced, and the ClearFox® team installed the SBR system in the second tank. The wastewater flows into the SBR reactor at regular intervals. At intervals, the reactor aerates the wastewater and thus promotes the growth of microorganisms. These lower the COD to 60 mg/l and the BOD5 to 30 mg/l. For this project, the ClearFox® team took over the complete planning of the project, the construction of the SBR plant, the installation on site and the training of the employees. 

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Wastewater treatment for a hotel in Kenya
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