PLANTS FOR INDUSTRIAL PROCESS WATER PRODUCTION AND WASTEWATER TREATMENT
Our technology and process combinations allows the production of process water according to your requirements. Arising waste water can be sustainable and cheap treated.
Eliminate your industrial waste water from pollutants and optimize your disposal costs
Use the possibilities of closing the water cycle for saving cost for fresh water or process water.
The disposal of waste water will get more and more difficult in the future. Significant savings can be achieved in recycling and reuse of materials.
Our unique and patented waterwin® technology solves problems in missing cycle operation of water by offering possibilities in:
- Waste water treatment that requirements of ZLD (Zero Liquid Discharge) are fulfilled. Reuse of process water instead of creation of liquid disposals.
- Concentration of ingredients to allow an efficient reuse or disposal.
Our knowledge is your advantage
GENERATION PRODUCTION OF PROCESS WATER
Plants for generation of process water
The water quality has to be adapted to the customer requirements in water treatment for process water. Quality parameters like content of salt, total organic compound (TOC) or microbiological requirements. These demands guide to a flexible choice of the right pre and post treatment of the process water.
Based on the data of the feed water a reliable and economic concept for your expectations on the quality for the process water can be fulfilled.
The expectations on the quality between process and feed water differ a lot.
In the industrial generation of process water there a different sources of the feed water. To achieve the quality for process water in all cases typically water softening, filtration, sedimentation or demineralization are required.
Typical process steps like reverse osmosis RO or ion exchanger can only follow after an optimum feed water treatment. Because cloudy materials have to be removed in advance. Therefore we use flocculation and high efficient flotation or ultrafiltration for achieving the high water quality for following process steps.
Beside removing of particles, deferrization, demanganization and TOC reduction are major points in process water treatment. The local feed water parameters require an adapted and flexible strategy for the process and a wide knowledge which is owned by QWAIR.
WASTEWATER Cleaning
Plants for waste water treatment
We offer pretreatment as well as the treatment of waste water. A pretreatment is recommended in case the size of a thermal separation would be uneconomical and by pretreatment and concentration the size could be reduced. Further it is possible to remove problematic ingredients from the waste water directly during pretreatment.
Possible pretreatments used by us are:
- Filtration in case of sediments and unsolvable ingredients
- Ultrafiltration in case of organics oil and fat (for example with ceramic UF-membranes)
- Nanofiltration in case of phosphates and sulphates
- Reverse osmosis (RO) in case of salt containing solutions
- Biological processes for degradation of biological ingredients
The liquid solutions are divided into a purified and preconcentrated fraction. The purified fraction which is reduced in volume and cleaned from disturbing ingredients is can be fed into a reduced throughput thermal treatment for further purification.
The liquid waste water/the liquid waste product/effluent water is evaporated continuously in our evaporator below the boiling point. The waste water/effluent water can be concentrated up to pumpability. This can be a critical economical advantage. The required heat is taken from the condenser. In case further heat is required it taken from residual heat or generated by a boiler, a heat pump or a combined heat and power unit. Hereby an almost optimum energy efficiency could be reached. In the condenser the transfer of the purified water from gas to liquid takes place. The required cooling energy is taken from the waste water feed. The concentration which is barely pumpable leaves the evaporator.
In case of a Zero Liquid Discharge (ZLD) process a further process follows where the concentration is inspissated. In most cases the concentration of the waste water is a starting point for recovery of the resources.
Processes & techniques in process water generation and wastewater cleaning
EXPERIENCE IN WASTEWATER PURIFICATION
QWAIR does have references in the following markets and is able to remove the typical pollutions in an efficient and ecological matter:
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We look forward to receiving your non-binding enquiry for the planning and realisation of a plant in the field of process water and waste water.