Systematically analyzing the problem of heavy metals in the municipal sludge, a meta-analysis of nine metals was undertaken to distinguish the sources and sinks of those with the impact of their accumulation on the environment. Municipal sludge was rich in N, P and K nutrients, was found to...

Modern trams usually own passive transit signal priority (TSP) to avoid interruption from traffic signals along the route. The key to TSP depends on the strictly stick to the recommend travel time between intersections. However, the effectiveness of the TSP can be weakened by dwell time...

Layered double hydroxide (LDH) as promising adsorbent can provide effective removal and quickly separate of pollutant for Congo red (CR). LDH and its calcined products (CLDH) at different temperatures were fabricated, and the effects of various physicochemical conditions such as calcined...