Boscia senegalensis is a drought resistant shrub whose seeds are used in West Africa as food. However, the seeds, or hanza, taste bitter which can be cured by soaking them in water for 4-7 days. The waste water resulting from the processing takes up the bitter taste, which makes it unsuitable for consumption. When used for irrigation, allelopathic effects were observed. Glucosinolates and their...

This article shows the possibility of using reagent-adsorbent compositions, i.e. charred defecate obtained at 600 °C and activated bentonite Askamar deposit in a ratio 1:5. It was found that with use compositions it will allow to purify wastewater from oil fat production pH-7.2 transparency 0.44, also water hardness is reduced 17 mEq / l 4.0 l, which recycling for technical needs.

The techniques of waste water treatment have reached nowadays a very advanced stage of development. As a result of the importance that must be attributed to this area, the Commission on Water Quality of IUPAC has decided to give a survey of processes which are used now. Beside the conventional mechanical and biological waste water treatment preferably flocculation, precipitation, adsorption, ev...

Various Application of Eco-enzymes from Organic Waste: A ReviewAbstractRecycling is an effective waste-handling method to utilize. One the products process recycling eco-enzymes. a fermented liquids mixed organic waste and molasses. The eco-enzymes fermentation usually takes 90 days or more produce optimal number enzymes. In our daily life, could be used for various applications. Eco-enzyme’s a...

Municipal sewage sludge is a solid, semisolid, or liquid muddy looking residue that results after plain old sewage (human and other waste from households and industries) is treated at a waste water treatment plant. Recent restrictions on the use of sewage sludge, however, have resulted in increased disposal problems. Sludge contains a variety of organic and inorganic compounds in the waste wate...

There is a worldwide and increasing shortage of potable fresh water. Modern water reclamation technologies can alleviate much of the problem by converting wastewater directly into drinking water, but there is public resistance to these approaches that has its basis largely in psychology. A psychological problem is encapsulated in the saying of those opposing recycled water: “toilet to tap.” We ...

Complex technological systems have emerged during the last decade as an important strand in technology teaching in several national curricula for compulsory school. However, even though understanding the systemic aspects and connected nature of contemporary society, it remains unclear what such understanding entails in detail, and even more unclear what may constitute good teaching. We present ...