The participants of a seminar held here on Thursday called for properly disposing of the solid waste besides recycling the same for obtaining energy. The seminar, titled "Waste disposal and management" was jointly organised by Solid Waste Management Association of Pakistan (SWMAP) and Pakistan Environmental Protection Agency (Pak EPA). Dr Klaus Frike, head of department, waste management, and Dr Florian Kolsch, technical expert, Tube University, Germany, addressed the seminar.