Though the ritual may vary from religions the idea of purification is to remove some form of spiritual evil or taboo.

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Answer : The steps involved in getting clarified water from wastewater involves physical, chemical, and biological processes, which remove physical, chemical and biological matter that contaminates the wastewater.

1. Wastewater is passed through bar screens. Large objects like rags, sticks, cans, plastic packets, napkins are removed

2. Water then goes to a grit and sand removal tank. The speed of the incoming wastewater is decreased to allow sand, grit and pebbles to settle down through sedimentation .

3. The water is then allowed to settle in a large tank which is sloped towards the middle. Solids like faeces settle at the bottom by sedimentation and are removed with a scraper. This is the sludge. A skimmer removes the floatable solids like oil and grease. Water so cleared is called clarified water. The sludge is transferred to a separate tank where it is decomposed by the anaerobic bacteria. The biogas produced in the process can be used as fuel or can be used to produce electricity.

4. Air is pumped into the clarified water to help aerobic bacteria to grow. Bacteria consume human waste, food waste, soaps and other unwanted matter still remaining in clarified water. After several hours, the suspended microbes settle at the bottom of the tank as activated sludge. The water is then removed from the top. The activated sludge is about 97% water. The water is removed by sand drying beds or machines. Dried sludge is used as manure, returning organic matter and nutrients to the soil. The treated water has a very low level of organic material and suspended matter. It is discharged into a sea, a river or into the ground. Nature cleans it up further.

• No. Liquid helps to break down food.
• The above answer is incorrect. Please do more research before believing me or the above answer. Drinking while eating dilutes stomach acids and digestive enzymes.
• According to a doctor at the Mayo Clinic, the first answer is correct. Water during and after meals helps break down food and promotes good digestion. You should not worry about diluting your stomach acids, they get by fine either way.
• However, washing partially-chewed food down with beverages is bad for digestion, so regardless whether you drink, chew thoroughly, mixing chewed food with saliva.

Yes, water is very effective in helping with weight loss. Many times people feel hunger in their stomach when it is really liquid they need. Drinking a glass of water will relieve cravings and get you to the next meal without snacking. If you drink a glass of water before you eat your meals, you won't eat as much. So it is very effective in taking off the pounds. Good luck!

• Yes and no. The human body can go for an extended period of time without food. I went for 12 days without food. I do not recommend it for longer than three or four days. After that, the long-term effects on your body are not worth it, since your body can start eating it's own muscles for energy. It's been almost a year since my extended fast, and my body has still not fully recovered from the loss of muscle.

• Truly fasting, not eating anything, has been proven to be non-harmful (provided that you have enough fat and no metabolic problems) and in the past has been used for weight loss. There are records of people going for 40, 100, 120 days without any food. The trick is that you have to fast for at least 4 days to stop feeling hungry and after an extended fast (weeks, months) re-feeding can be tricky and in some cases dangerous. You will lose a steady trickle of weight over time. A week will cause you to lose between 1 and 2 pounds. You have to drink enough water and get enough rest and some sun. Most people have enough nutrients already in them and do not require vitamins until they get well past the point where they require calories. However, eating anything tips the balance and it becomes a diet, a starvation diet. Then, the metabolism does not adjust to using your fat and you will harm yourself. Therefore, fasting is a slow weight loss method. If you think that fasting for a while so that you can approach food and eating from a cleaner slate will help you, talking to your doctor about a fast would be appropriate. If you think that fasting will cause you to drop a lot of weight quickly, then you are misguided. There are fasting groups and fasting centers (like TrueNorth) that can help you put together a healthy fast. However, the big focus is getting more in touch with yourself, clearing your palette of a taste for junky foods and appreciating how beautiful life is and how much food is a part of the fabric of life. All worthy goals. Losing weight very quickly is more harmful than being over weight and losing more than a pound or two per week is too fast. Consider a lifestyle change rather than a diet, considering not eating anything is a sign that you are really needing a change.

• You will lose weight by starving yourself but, once you start eating again, you will gain more weight than you lost. This is because your body knows that you are starving and tries to hang on to nourishment it can get (and thus you get fat quickly). In addition, when you do not eat, your metabolism slows down and you will not be burning as many calories. Moreover, as mentioned in the first answer, your body will use muscle for energy, and then you are self-destructing. A better option would be to go on a sensible diet where you eat lots of fresh veggies & fruits and lean meats.

• You will loose weight because you are starving. You could possibly kill yourself by doing this. Generally people cannot last longer than a week without food. I understand that you drinking water which will hopefully keep you alive but this is very unrealistic. Doing this can be very damaging to your body. Not to mention as soon as you eat anything again your body will immediately store it away as fat because you are starving it. Fat is a reserve. I suggest that you eat healthy and workout. It's as simple as that. Though it may not be instant, the probability of you 'making it' is 100%.

• Actually, the human body can survive for three weeks without food and three days without water.

• An average (not overweight) male adult can go without food for 42 days as long as they are not subject to harsh weather and emotional distress. Whilst fasting it is extremely important to drink plenty of water (2 litre minimum). You are likely to lose an average of 1-2 lbs (.45-.9 kg) per day of fasting. Keep in mind that this is water and fat loss. This is normally spread out with a weight loss of about 2.2 lbs (1kg) each day for the first few days, and about 1 lbs (.45) each day thereafter. After about a week though, weight loss will slow dramatically. If you eat healthy and slowly re-introduce foods when finishing a fast you can expect none to minimal weight gain. I hope this helped, and as with anything health related talk to a doctor or research from reputable sources.