please can you tell me good companies which design big chemical plants . as we long time use Wallace and Terrnan instruments in our water projects for chlorine , caustic soda injection ..
and which standard shall we use ,any new
systems are available now for injection in the big plants (55 million gallon per day).
we using chlorinators with evaporators and gas drum and motive water pumps and ejectors ..etc
any new ideas please give me