Anaerobic Waste – How Anaerobic Digestion Works in Wastewater Treatment

Anaerobic Digestion

Anaerobic waste digestion happens in a closed reactor. Bacteria act upon the organic waste and release plenty of carbon dioxide and methane. The microbial community has only obligate anaerobic and facultative bacteria. As in aerobic chemohetrotrophic metabolism, initially the macromolecules are hydrolyzed. These products are then converted to volatile fatty acids (mainly acetic acid), and alcohols. The organisms responsible for these anaerobic waste reactions are popularly called acid formers.

They obtain energy through oxidation of organic compounds, but do not use oxygen as electron acceptor. Instead, another fragment of the substrate is reduced to anaerobic acids and alcohols through anaerobic processes. These are then metabolized by a second group of obligate anaerobic biomass (the methane formers), and converted to methane gas.

It is estimated that 60 to 70% of methane production in an anaerobic waste reaction is through conversion of acetic acid and the rest through carbon dioxide reduction by hydrogen.

The activities of the methane and acid producing groups of bacteria must be balanced as the former is sensitive to pH changes and works best in pH range 6.8 to 7.5.

Stabilization Ponds

Anaerobic waste stabilization ponds are large and shallow basins with residence times of 12 to 25 days. A variety of microorganisms inhabit such ponds participating in the anaerobic digestion of waste. In addition to the aerobic and anaerobic chemoheterotrophic organisms, a pond has a large variety of photoautotrophic life forms also. Green and blue-green algae are found in abundance in the top layers, maintaining a symbiotic relationship (I am ok, you are ok!) with the bacteria. At times the pond may also have a significant population of sulfur photosynthetic anaerobic waste water organisms.

Anaerobic Waste – How Anaerobic Digestion Works in Wastewater Treatment

Anaerobic Digestion

Anaerobic waste digestion happens in a closed reactor. Bacteria act upon the organic waste and release plenty of carbon dioxide and methane. The microbial community has only obligate anaerobic and facultative bacteria. As in aerobic chemohetrotrophic metabolism, initially the macromolecules are hydrolyzed. These products are then converted to volatile fatty acids (mainly acetic acid), and alcohols. The organisms responsible for these anaerobic waste reactions are popularly called acid formers.

They obtain energy through oxidation of organic compounds, but do not use oxygen as electron acceptor. Instead, another fragment of the substrate is reduced to anaerobic acids and alcohols through anaerobic processes. These are then metabolized by a second group of obligate anaerobic biomass (the methane formers), and converted to methane gas.

It is estimated that 60 to 70% of methane production in an anaerobic waste reaction is through conversion of acetic acid and the rest through carbon dioxide reduction by hydrogen.

The activities of the methane and acid producing groups of bacteria must be balanced as the former is sensitive to pH changes and works best in pH range 6.8 to 7.5.

Stabilization Ponds

Anaerobic waste stabilization ponds are large and shallow basins with residence times of 12 to 25 days. A variety of microorganisms inhabit such ponds participating in the anaerobic digestion of waste. In addition to the aerobic and anaerobic chemoheterotrophic organisms, a pond has a large variety of photoautotrophic life forms also. Green and blue-green algae are found in abundance in the top layers, maintaining a symbiotic relationship (I am ok, you are ok!) with the bacteria.

At times the pond may also have a significant population of sulfur photosynthetic anaerobic waste water organisms.

Don’t Waste Money On Fitness Equipment

Article by Zach Hunt

Want to know about fitness equipment? Is it something you really need? Or would your money be better spent with a personal trainer?

Fitness equipment in your home will not produce the same fitness results that a qualified personal trainer can offer for around the same price as the expensive fitness equipment, if not cheaper. Since a piece of fitness equipment is nothing more than an object, it is unable to compete with the advantages that an actual fitness trainer can provide. This equipment will not assist you in the proper techniques for losing weight and getting into better shape. Additionally, fitness equipment will become useless once you achieve your desired level of health.

As a resident interested in improving their health, you need to establish a proper fitness plan. The expertise that a fitness trainer has with fitness equipment will provide you a much better knowledge.

Fitness Equipment Is A Temporary Solution To Better Health

The fitness equipment, regardless of what type of equipment it is, only has limited use. There is not one piece of fitness equipment that will assist you in completing all of your fitness goals.

Many people give up on their fitness goals or if they do reach them, the expensive exercise equipment invested in starts to collect dust.

Equipment For Fitness Will Not Plan Your Entire Workout

Regardless of the price that you pay for your fitness equipment, it will not plan your entire workout. It will not tell you everything that you need to do to succeed at your individual fitness goals.

Only a proper personal trainer can guide you to successfully completing your fitness goals, even if they seem impossible to tackle.

Invest Smart By Rethinking Your Fitness Equipment

In reality, there is not much of a difference between the price of fitness equipment and the price of hiring a personal trainer. Both options are considered expensive, but you will gain so much more from a personal trainer than you ever will from a piece of equipment.

Your Mental Health

Fitness equipment will not help you in maintaining your mental health. By mentally being ready for your upcoming workout, you will be able to achieve a better physical workout.

A fitness trainer can assist you in keeping your morale up while the fitness equipment will encourage you to give up on your fitness goals, if anything.

Improving Your Social Life

By investing in the services of a fitness trainer against purchasing fitness equipment at your local store, you can improve your social life. By working out a a fitness center, you will meet individuals with similar fitness goals.

Personal trainers want you to succeed. It’s important to them, as it is to you.

You will have someone to talk to (in your personal trainer) when you have questions regarding your fitness plan. A piece of fitness equipment is unable to carry on a conversation with you, leaving you with a lonely workout session.

So, In Conclusion..

Fitness equipment will do you little good unless you are using the fitness equipment of a fitness trainer that you have hired. Your fitness trainer, just like any human, will always be more valuable than a mechanical device.

As I’m sure you’ve seen numerous people line up at health clubs or gyms on the treadmills and other machines and avail to no results.

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