The blood is filtered and all the sugar is reabsorbed. Mineral ions and water needed are selectively reabsorbed. The mineral ions, water and urea are removed in the urine The sugar is reabsorbed by active transport
Dialysis -If a kidney is damaged or failing dialysis can be carried out. -The dialysis fluid contains the same concentration of glucose and mineral ions as the blood. -The dialysis fluid contains no urea. -It is a time consuming process -Must have a controlled diet
Transplant -A donor is required -The donor kidney maybe rejected -Must take immunosuppressants drugs for the rest of their life -Can have a normal diet
The product made is used as a fuel A slurry is produced that is used as a fertiliser The production of methane is an exothermic reaction
The generators can be built above ground or underground. Initial costs are more to build Harder to repair Cheaper long term as it keeps heat in Have to be trained to use it Cheaper to build Easier to repair Costs more long term as more heat is radiated Have to be trained to use it
More Biogas Sugar cane and maize is fermented anaerobically to produce ethanol. It is distilled. It is a carbon neutral fuel.