+ wishlist Supersonic Separators for Sustainable Gas Purification (Green Energy and Technology) [9783031852121] Add to Cart The item has been added Author: Hongbing Ding Chuang Wen Yan Yang Supersonic Separators for Sustainable Gas Purification (Green Energy and Technology) [9783031852121] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 12% 50 - 99 13% 100+ 14% List Price As Low as $199.99 Format: Hardcover