A Study of Reject Management Using Rack Type Solar Evaporator in Tannery Wastewater Treatment

摘要

Conventional treatment in the tannery wastewater treatment can remove the organic pollutants to an extent, but the removal of organic pollutant needs further treatment. Reverse osmosis process serves the purpose of removing the inorganic pollutants especially total dissolved solid which posed a tedious problem for the tannery wastewater treatment. The TDS removed by the reverse osmosis system will be in a concentrated form with high TDS and it need proper disposal. The high TDS reject are evaporated in solar pans in small scale units and evaporators in mechanical evaporators in large scale units. But the current technologies followed for the reject management system are very expensive and need more area. The cost effective and space effective solution for the reject management system is tried in using rack type solar evaporation.