Wastewater from households, industries and agriculture, if treated, could be a valuable resource rather than a costly problem, United Nations experts in a report on Wednesday. Treating and recycling wastewater would not only reduce pollution but could help meet growing demand for freshwater and other raw materials, they said. Below are some facts on wastewater to tie in with World Water Day on Wednesday: – More than 80 percent of wastewater worldwide is released without treatment, contaminating rivers and lakes. – On average, low-income countries treat only 8 percent of domestic and industrial wastewater. High-income countries treat 70 percent. – Pollution from human and animal waste affects nearly one in three rivers in Latin America, Asia and Africa, putting millions of lives at risk. – In 2012, 842,000 deaths in low- and middle-income countries were linked to contaminated water and inadequate sanitation. – In sub-Saharan Africa, more than 60 percent …