id	keyword
brj-23239	sludge
brj-23239	gasification
brj-23239	water
brj-23239	temperature
brj-23239	article
brj-23239	energy
brj-23239	production
brj-23239	process
brj-23239	et al
brj-23239	doi
brj-23239	system
brj-23239	fig