1) The document discusses methods for reducing energy waste and pollution in urea production processes. Specifically, it proposes condensing crystallizer vapors indirectly and treating generated waste in a distillation tower and urea hydrolyzer. 2) Around 450-480 kg of liquid effluents are generated per metric ton of urea. This waste water can be pumped into a distillation tower to separate the water and urea through volatility differences, with water exiting the bottom and urea vapors exiting the top where urea decomposes. 3) Efficient treatment of wastes is needed to prevent skin irritation and blood cell damage from contact with urea, as urea can be irritating to skin and high