The in-vessel method, as suggested by its name, involves closed reactors. This is synonymous to closed bin composting method in residential scale, but instead of small bins, we are talking of metal tanks or concrete containers that are herculean in size. As a result, factors such as flow of air and temperature are controlled more effectively.
Some companies also put additional cover layers atop the metal tank or enclosed composting container to ensure complete isolation from external elements. Ventilation and insect infestation are often controlled by layering, constant cleaning and additional aeration processes on the affected layers.
MBS is the acronym for mechanical biological treatment system. It is a facility that helps sort materials using the composting technique. The scientific term for composting, in this case, is anaerobic digestion. This has instant practical applications in helping sort waste from residential abodes as opposed to industrial wastes which may be more hazardous and larger in number. This waste management technique is praised for its ability to help ensure biological safety of the environment.
The heap is often the method used for composting, but in the case of sheet composting, it the organix materials are placed directly on the soil you are intending to fertilize. Then it functions as a mulch when it decays there. The common materials used here are alfalfa and mustard. But the only downside is that it can rob off the nitrogen in the soil.
But adding green manure crops like clover can help sustain the lagging nitrogen supply in the roots. Most of the supporters of sheet composting claim that in the long run, this is more effective and able to retain more minerals in the soil than other techniques.
High Fiber Method
Wales invented this high fiber method of industrial composting and with great success so far. It involves rigorous stirring and even distribution of materials all throughout the pile. And then the aeration and surface area of the entire compost pile will improve with this symmetry. The compost pile consists of cardboard, newspapers and other forms of used paper.
It is also well-suited for household composting but then it is currently being performed on a laboratory in Wales for further monitoring. This solution was offered as a way of helping reduce pressure in waste landfills. If paper products are used as a material for composting, excluding the poisonous risk of colored ink, it really has a high potential of success.
ASP or Aerated Static Pile method of composting has both active and passive elements to it. The heap is placed on holed pipings that allow circulation without having to manipulate or turn the entire compost heap, as in other industrial composting techniques.
It completely relies on air for the bulk of the operation, and is extremely helpful for making sure that the passive and active elements are both in play.