Solution by Industry – Hotel

Hotel Wastewater treatment Plant and effluent recycling system (ERS) by Imemflo MBRs.

Hotel Wastewater / sewage treatment

The wastewater from hotels and restaurants provides enormous challenges. Wastewater generated by hotels can contain a variety of pollutants and contaminants that need to be properly managed and treated before discharge. The specific composition of hotel wastewater can vary depending on factors such as the size of the hotel, the types of facilities it offers, and local regulations. 

This is of course a major task for biological wastewater treatment plants. We at imemflo are familiar with such tasks and have wastewater treatment plants that function as a combination of the biological process and submerged filtration process consist of Hollow Fibre Membrane Bio Reactor (HF MBR) / Flat Sheet Membrane Bio Reactor (FS MBR). Hotel treated water then can be recycled back to multiple uses.

with the latest breakthrough in the water conservation, MBR technology is said to be the most affluent and effective method for Hotel waste water treatment. MBR technology by Imemflo can provide a modern filtration system. it removes 90-95 % harmful substances from the waste water and making it usable for non-potable applications. 

In this way, we can reduce the water footprint and cut down the water cost. Hence, securing future generations by engaging the latest technology and helping them to create new water.

So, let’s create a long-lasting impact on the world by using imemflo MBR. 


WASTEWATER CHARACTERISTIC OF HOTEL WASTEWATER 

The characteristics of hotel wastewater can vary based on factors such as the size of the hotel, the amenities it offers, and local practices. However, here are some general characteristics of hotel wastewater:

Here are some common components found in hotel wastewater:

  1. Domestic Wastewater:
    • Greywater: Contains contaminants from showers, sinks, and laundry activities. It typically has lower levels of organic matter compared to blackwater.
    • Blackwater: Arises from toilets and urinals, containing higher levels of organic matter and pathogens.
  2. Food and Beverage Wastewater:
    • Kitchen Wastewater: Contains fats, oils, grease (FOG), food particles, and cleaning chemicals from dishwashing and food preparation.
    • Restaurant Wastewater: Contains residues from food and beverages served in dining areas.
  3. Laundry Wastewater:
    • Laundry Effluent: Contains detergents, softeners, and potentially chemicals used in the cleaning process.
  4. Swimming Pool Wastewater:
    • Pool Discharge: Contains chemicals used for pool water treatment and contaminants introduced by swimmers.
  5. Chemical Use:
    • Cleaning Products: Various chemicals used in cleaning hotel rooms and common areas can contribute to the wastewater composition.
  6. Grounds Maintenance:
    • Pesticides and Herbicides: If used on hotel grounds, these substances may find their way into wastewater during rainfall events.


IMEMFLO MBR BASED WASTEWATER TREATMENT PLANT / SEWAGE TREATMENT PLANT IN HOTEL

Imemflo Hollow Fiber MBRs & Flat sheet MBRs with ultra filtration range is an advanced and efficient method for treating hotel wastewater. MBR combines biological treatment with membrane filtration, providing enhanced removal of suspended solids and pathogens. Here’s an overview of how MBR works in hotel wastewater treatment:

Biological Treatment:

Activated Sludge Process: The hotel wastewater undergoes biological treatment through the activated sludge process. This involves the use of microorganisms to break down organic pollutants present in the water, reducing parameters like BOD and COD (Chemical Oxygen Demand).

Membrane Filtration:

Membrane Modules: MBR systems use membranes with fine pores to separate suspended solids and microorganisms from the treated water. Common membrane materials include polymeric or ceramic materials.

Filtration: The membranes act as physical barriers, allowing clean water to pass through while retaining particles, bacteria, and other contaminants. This step significantly improves the removal of Total Suspended Solids (TSS) compared to traditional wastewater treatment methods.

Advantages of MBR in Hotel Wastewater Treatment:

Space Efficiency: MBR systems typically require less space than conventional treatment processes because they eliminate the need for a separate clarifier.

High-Quality Effluent: The membrane barrier provides excellent effluent quality, meeting stringent discharge standards. This is particularly important for environmentally sensitive areas or where strict regulations are in place.

Pathogen Removal: MBR is effective in removing bacteria, viruses, and other pathogens, enhancing the safety of the treated water.

Flexibility: MBR systems can be easily adapted to handle variations in wastewater flow and load, making them suitable for the variable nature of hotel wastewater.

Reduced Sludge Production: The biological treatment in MBR systems produces concentrated sludge, which is easier to handle and may require less frequent disposal.


CASE STUDY 

– 200 Bed Hotel in India  

Imemflo Hollow FIber MBR systems was installed in 200 bed 5 star luxury Hotel, with capacity of 250 m3/d.  Since the startup, this facilities have worked well and the treated water meet the requirements of the wastewater reuse standard.  

Parameters

UNIT

Incoming wastewater

Treated wastewater

BOD

Mg/L

245 – 286

< 3.5 – 6

COD

Mg/L

489 – 578

< 28 – 32

pH

 

6.3 – 7.6

7.2 – 7.8 

NH3 

Mg/L

18.5 – 24.50

< 7 – 11

TSS

Mg/L

140 – 160 

< 1.3 – 5.8 

Turbidity 

NTU

268  – 350 

< 1.5 – 3.8

Fecal Coliform 

PFU/100 ML

7500 – 9800 

< 49 – 110 


CONCLUSION 

The future design of wastewater treatment plants in the hotel industry will be influenced by factors such as strict regulations on treated water quality, limited space on hotel premises, increasing awareness of recycled water applications, cost-effective operations, and the imperative for thorough pathogen and microbiological contamination removal. 

Imemflo MBR, equipped with a proficient team, is prepared to assist upcoming and new hotels by providing training, guidance, and awareness on the effective utilization of treated water, leveraging Imemflo’s hollow fiber MBR technology.

In summary, MBR technology offers a robust solution for hotel wastewater treatment, providing high-quality effluent, efficient removal of contaminants, and flexibility in handling varying wastewater conditions. The choice of wastewater treatment technology depends on factors such as site-specific requirements, regulatory standards, and the hotel’s commitment to sustainability.

Other technologies for Hotel wastewater / sewage treatment can be used i.e. MBBR (Moving Bed Bio Reactor), SBR (Sequential Batch Reactor), ASP (Activated sludge Process). Many hotelier install separate Grey Water Treatment plant for laundry Waste. 

MBR membranes can be supplied by Suez, Dow, Dupont, MITSUBISHI hollow fiber, Toray Flat sheet MBR. 

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