As a result of the growth in population, the demand for water resources has increased over the period of time. And, as we all know, water is required at every stage of the manufacturing and production processes all over the world. The water requirement varies based on several factors, i.e. Industry and capacity. As per the statistics, nearly 20 – 60% of (usable) water is being consumed by industries in different geographies. In order to address the current water scarcity, industries are installing wastewater treatment plants far more than ever before.
There are various processes included in treating the wastewater such as Physico-chemical pre-treatment, biological treatment, membrane filtration, electrodialysis, evaporation, and crystallization. These are being differentiated as primary, secondary, and tertiary treatments, and the decision (which treatment to be used) is made based on several factors including the financial evaluation and local regulations.
In some cases, industries are considering minimal liquid discharge (MLD) or Zero Liquid Discharge (ZLD) to treat and concentrate wastewater further. Several industries recover valuable minerals in the concentration / crystallization section which makes investment attractive.
During this process after membrane filtration, the water is further processed by evaporation to recover maximum water from the reject. Due to the salts and sediments in the reject water, MEE (Multi effect Evaporators) or MVR (Mechanical Vapor recompression) evaporator systems tend to foul which results in a decrease in heat transfer efficiency and an increase in operational cost.
With the help of Klaren’s self-cleaning heat exchanger technology, you can achieve up to zero fouling operations in your evaporation system and run the plant without any operational constraints.
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