In the battle against rising costs, many businesses are now looking for ways to recycle their waste water, also known as greywater. Doing so can save a large chunk of your water bill and help your business go green. It's an especially effective method in the hospitality industry, where water usage is high. When most venues lose all used water down the drain, others are taking the water used by for dishwashing, or by guests for showering and putting it to work for them once again in the laundry, toilet or garden.
Before this can happen, however, it's crucial for the waste water to be treated. Once water comes in contact with organic matter it will be contaminated with bacteria. It doesn't matter if you're reusing dishwater filled with potato peelings or just tap water that's been in contact with your guest's hands — any contact is enough. Waste water systems store water for several days, which is enough time for even small amounts of bacteria to multiply and start to smell. This would obviously be off-putting for customers.
You can still use waste water without causing a stench in your venue — it just needs effective treatment first. Look into setting up waste water recycling systems. There are several commercial options for this. The kind of system you'll want to install will depend on your venue, but they generally fall into two categories: aerobic and anaerobic-to-aerobic.
The science behind these two different systems isn't crucial to know. What is important is that aerobic systems can handle waste water from showers, sinks and laundries, but they won't cope well with dishwater. This system's filtration can't effectively break down the large amounts of organic matter and grease you get from a kitchen, leaving a sludgy waste product that will need to be cleaned regularly.
To deal with dirty dishwater, anaerobic-to-aerobic systems provide an extra layer of filtration. This is enough to digest food waste; there's still the waste product, but much less of it. The system will need maintenance to remove the sludge, but this can be done far less often than if you were using an aerobic system to treat the dishwater.
With a treatment system in place, your waste water system is ready to connect up. Commercial systems available for public businesses will not allow you to reuse water from the toilet. Beyond that, all the water that would normally be heading down the drain can be reused to clean and flush for a greener, more economical business.