Following mass finishing, the process water contains abrasive media and metal abrasion, and often oil as well. Regardless of whether the water is to be reused in the cycle or discharged, it must be cleaned. Furthermore, pollutants such as heavy metals must be reduced before the water is discharged into the sewer system.
In centrifugal circulation systems, flocculants ensure that the process water retains the desired properties (cleaning, corrosion protection, etc.) over a longer period. Water suitable for discharge is not usually obtained in centrifugal circulation systems.
Flocculants ensure that the smallest particles of dirt in the water combine to form larger flocs, which can then be separated out. For automatically operated systems, liquid flocculants are recommended as they are particularly easy to dose. For water suitable for discharge, the LAC flocculant counteracts the effect of surfactants and forms microflocs, whilst F enlarges the flocs and clarifies the water. Flocculants for recirculating systems function similarly to F.
If flocculation is carried out manually, powdered flocculants are more suitable. ESM is recommended for oil-containing water, whilst ESB represents a particularly cost-effective solution for oil-free water.
- Flocculants perform cleaning on process water
- Liquid flocculants for automated systems
- Powdered flocculants for manual flocculation
Trowalpur water treatment agents are used to treat waste water or process water which, following mass finishing, contains abrasion residue from workpieces and abrasive media, as well as oil in many cases. These agents ensure that your process water is always adequately cleaned within your centrifuge circuit. When discharged into the sewerage system, this ensures that your treated water is crystal clear and complies with all regulatory requirements.
Flow
With trowalpur, you can be sure that you are discharging only crystal-clear water into the sewer system, which complies with all regulatory requirements and protects the environment.
| Designation | pH range | Properties | Properties | Properties | Circulation technology | Comments |
| Abrasive media | Metal abrasion | Surfactants / oil | ||||
| trowalpur LAC | strongly acidic | ++ | ++ | ++ | - | in combination with neutralising agents for wastewater treatment plants |
| trowalpur F | neutral | + | 0 | + | - |
Recycling
Separating out the solids and retaining treatment agents saves on both the use of Compounds and water.
| Designation | pH range | Properties | Properties | Properties | Circulation technology | Comments |
| Abrasive media | Metal abrasion | Surfactants / oil | ||||
| trowalpur R | slightly acidic | ++ | + | 0 | ++ | universally applicable |
| trowalpur E | slightly acidic | ++ | + | + | ++ | natural-based and environmentally friendly, low in chloride* |
| trowalpur T | slightly acidic | ++ | + | + | ++ | suitable for general use, avoid overdosing |
| trowalpur S | slightly acidic | ++ | + | 0 | ++ | natural-based, chloride-free* |
| trowalpur C | slightly acidic | ++ | + | - | ++ | special applications |
| Designation | pH range | Properties | Properties | Properties | Circulation technology | Comments |
| Foam | Cleaning | Corrosion protection | ||||
| trowal pH plus | alkaline | no foaming | - | - | ++ | Increases the pH value in the process |
| trowal SBW | slightly alkaline | no foaming | - | - | ++ | Increases water hardness |
| trowal SB 93 | neutral | low foaming | + | - | + | defoamer |
| trowal CL 21 | alkaline | low foaming | ++ | ++ | ++ | system cleaner* |
trowal treatment aids
These additives adjust the parameters of the process water, such as the pH value, water hardness or tendency to form foam.
| Designation | pH range | Properties | Properties | Properties | Circulation technology | Comments |
| Abrasive media | Metal abrasion | Surfactants / oil | ||||
| trowalpur ESM | slightly alkaline | ++ | ++ | ++ | ++ | also for wastewater flocculation |
| trowalpur ESB | slightly alkaline | ++ | ++ | ++ | + | also for wastewater flocculation |
| trowalpur ESZ | alkaline | ++ | ++ | ++ | ++ | maintenance of alkaline pH value, oil binding |
| trowalpur ESO | neutral | + | - | ++ | ++ | in combination with liquid flocculants for oil binding |
| trowalpur ESG | slightly alkaline | ++ | ++ | ++ | ++ | granules |
trowalpur water treatment agents are used to treat waste water or process water which, following mass finishing, contains abrasion residue from workpieces and abrasive media, as well as oil in many cases. They ensure that your process water is always adequately cleaned within your centrifuge circuit. When discharged into the sewerage system, your treated water is guaranteed to be crystal clear and to comply with all regulatory requirements. Powdered treatment agents are suitable for both manual and automatic dosing.
| Designation | pH range | Properties | Properties | Properties | Circulation technology | Comments |
|---|---|---|---|---|---|---|
| Abrasive media | Metal abrasion | Surfactants / oil | ||||
| trowalpur ESM | slightly alkaline | ++ | ++ | ++ | ++ | also for wastewater flocculation |
| trowalpur ESB | slightly alkaline | ++ | ++ | ++ | + | also for wastewater flocculation |
| trowalpur ESZ | alkaline | ++ | ++ | ++ | ++ | maintenance of alkaline pH value, oil binding |
| trowalpur ESO | neutral | + | - | ++ | ++ | in combination with liquid flocculants for oil binding |
We would be happy to advise you personally on your specific application
Your point of contact for consumables
Our consumables experts will find the right solution for your specific application! Please feel free to get in touch directly or use the contact form.
Bruno Andreas Barbeitos Helfrich
H.J. Helfrich Comércio e Equipamentos Lda
h.j.helfrich@sapo.pt
