... less water to achieve the same results. The use of urea as a superplasticiser is promising, as it breaks hydrogen bonds... in the Journal of Cleaner Production, found that urea and naphthalene-based superplasticizers retain their shape under external...
... - where 100 percent represents a fully autonomous unit – 100 percent of water was recycled, recovery of nitrogen from urea was 99.7 percent efficient and microbial waste degradation rate of solid waste was 67 percent. This and other...
... production. The microbial cells are fed carbon dioxide, hydrogen, oxygen, nitrogen (which can be sourced from urea) and some minerals. The microorganisms are then able to make amino acids, carbohydrates, lipids (fats) and...