Wastewater treatment for a hotel

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

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.

FAQ

Sequencing Batch Reactor ) system is a flexible and efficient treatment process that operates in intervals. It aerates the wastewater, promotes the growth of microorganisms and thus reduces the chemical oxygen demand (COD) and the biological oxygen demand (BOD5) to very low values.

Yes, the system is designed to handle wastewater that contains fats, oils and other organic contaminants. Pre-treatment (e.g. grease trap) can be useful for heavily contaminated wastewater.

Yes, as demonstrated in the example project, the system can be installed underground in concrete tanks manufactured on site. This means the system saves space and is visually unobtrusive.

The system is completely self-sufficient and ideal for regions with rudimentary or non-existent sewage infrastructure. It provides an environmentally friendly and independent solution.

The ClearFox® team will train employees on site. In addition, the system can be equipped with remote monitoring to check operation remotely.

Yes, the ClearFox® SBR system is versatile and adaptable. Whether for hotels, industrial plants, residential areas or other applications: our engineers analyze your specific requirements and design a tailor-made solution.

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