Creating a Worm Bin

Worms can double their population about every 90 days, so you shouldn’t need to ever buy more. If your bin gets too crowded, help your neighbor set up a bin for her garden.

Pentacles and Pastries

Red WormsAnother way to transform waste into gardening gold is a worm bin, in which our favorite little hermaphrodites break down food waste into worm castings. A worm bin acts like a living garbage disposal, transforming kitchen and paper waste into nutrient-rich soil. You can keep one indoors during the cooler months (they do not stink unless something goes wrong0 or outside when above freezing.

In milder climates, you can build one outside from cinder blocks to provide some insulation during cooler temperatures. If you have space for it on an enclosed porch or a quiet corner of your kitchen, an indoor bin can be made out of a 5- or 10-gallon opaque plastic tub. Black or dark plastic or wood is ideal to reduce the amount of light that reaches the worms. To provide your worm colony with air, drill 1/8-inch holes about 1 inch apart all the way around…

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Solid Waste Management: Vermicomposting and Its Upgrading

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Environment

Human beings live in nature and depend on the resources of nature. The utilization of soil, water, coal, forest, gas, etc, is very important for the development of nation. These resources have changed the level of living standard of man. Solid waste is regarded as the resources. Solid waste can be described as non-liquid refusals from household, industrial and commercial establishment, market and public places. These all refusals can be used as resources in one way or other, and can be recycled, reused or transform into other forms of resources.

Solid waste may be organic and inorganic. The best way to manage the organic waste is to make manure by composting. There are different methods of composting such as:

a)      Bin composting                                 d) pile composting

b)      Vermicomposting                            e) pit composting

c)       Box composting

Vermicomposting

Vermicomposting is one of the best ways of making compost. Vermicomposting is the process of…

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Different Strategies in Composting

Compost Pile

The methodology of composting can be categorized into three major segments—anaerobic composting, aerobic composting, and vermicomposting. In anaerobic composting, the organic matter is decomposed in the absence of air. Organic matter may be collected in pits and covered with a thick layer of soil and left undisturbed six to eight months. The compost so formed may not be completely converted and may include aggregated masses.

Aerobic compostingis the process by which organic wastes are converted into compost or manure in presence of air and can be of different types. The most common is the Heap Method, where organic matter needs to be divided into three different types and to be placed in a heap one over the other, covered by a thin layer of soil or dry leaves. This heap needs to be mixed every week, and it takes about three weeks for conversion to take place. The process is same in the Pit Method, but carried out specially constructed pits. Mixing has to be done every 15 days, and there is no fixed time in which the compost may be ready. Berkley Method uses a labor-intensive technique and has precise requirements of the material to be composted. Easily biodegradable materials, such as grass, vegetable matter, etc., are mixed with animal matter in the ratio of 2:1. Compost is usually ready in 15 days.

Vermicomposting involves use of earthworms as natural and versatile bioreactors for the process of conversion. It is carried out in specially designed pits where earthworm culture also needs to be done. Vermicomposting is a precision-based option and requires overseeing of work by an expert. It is also a more expensive option (O&M costs especially are high). However, unlike the above two options, it is a completely odorless process making it a preferred solution in residential areas. It also has an extremely high rate of conversion, so quality of the end product is very high with rich macro and micronutrients. The end product also has the advantage that it can be dried and stored safely for a longer period of time.

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