Prohibited Items; Removal Of Oily Materials - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

3.6

Prohibited Items

The raw wastewater should not contain any of the following substances:
Hydrocarbons – lubricants, gasoline, diesel, etc.;
Paints, solvents, silica, silicones and polymers;
Antibacterial solutions, and products with quaternary ammonia;
Large quantities of chemicals such as water softener, disinfectants, strong acids &
alkalis, pesticides or photographic chemicals;
Silicone based defoamers;
Non-biodegradable solid waste (plastic, rubber products, disposable diapers, etc.);
High amount of metals, such as iron, magnesium, calcium, barium and strontium.
TOXIC MATERIALS SHOULD NOT BE THROWN INTO THE DRAIN!
3.7

Removal of Oily Materials

The wastewater must pass through a grease trap (or similar facility for grease/fat removal), if
there is kitchen usage onsite. The large amount of oil and fat can harm treatment facility (e.g.,
clogging pumps and piping and cause foaming in the aeration tank). To avoid premature
membrane fouling, maximum FOG concentrations should not exceed 30 mg/L.
The raw wastewater should also comply with the following compatibility chart. The lipophilic
substances concentration must be lower than 50 mg/L.
newterra O&M Manual
© 2017 by newterra, ltd.
All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without prior written permission of newterra ltd.
Fats, oils and grease (FOG) must be removed prior to MBR.
Removing of FOG significantly reduces membrane fouling,
foaming potential and increases aeration efficiency.
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(800) 420-4056 / www.newterra.com
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