a) Beginning the cheese-making process, according to Ottolenghi's Jerusalem
b) The best way to treat the wastewater from this process, often called whey, is to separate the pure water from the whey. This can be achieved using a fairly energy-intensive but efficient evaporation process, by which the whey is dehydrated, and clean water can be condensated.
which may become problematic for them in the long run, if they make it a habit. As a student, if you think that only the students from the United Kingdom