TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The gas is enriched by the Kundsen diffusion. The gas mixture is collected from a digester. The aqueous fraction is further treated with an adsorbent material to remove at least one pollutant from the aqueous fraction. The pollutant is an antibiotic. The adsorbent material is subjected to gasification in the gasifier. The aqueous fraction is further treated to obtain at least one inorganic salt. The salt is used as a fertilizer feedstock. An ammonia is used as a fertilizer feedstock. The biogas is collected and concentrated by the use of immiscible polymer membranes. The gasifier operates at 700 - 1200degreesC.Preferred Components: At least one extrinsic component is a solid.Preferred Reactor: The biogas reactor is a two-stage anaerobic digestion reactor. The two-stage anaerobic digestion reactor comprises a first stage digester and a second stage digester. The digested solid fraction is separated from the first stage digester. The aqueous fraction is delivered to an ammonia scrubber to remove ammonia and to generate a de-ammoniated aqueous fraction and ammonia. The de-ammoniated aqueous fraction is delivered into the second stage digester. The ash is used as a fertilizer feedstock or component in production of ceramics    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The mean interdomain spacing is 1 - 400 (preferably 40 - 180, particularly 50 - 100)nm. The two immiscible polymers comprise a first polymer and second polymer in a volume ratio of first polymer to second polymer as 0.8:1.2 times the viscosity ratio of the first polymer to the second polymer.The first and second polymers are thermoplastic polymers. The first polymers is amorphous or semi-crystalline polymer selected from 45 polymers as given in specification e.g. polyvinyl chloride, cellulose acetate, polybutadiene, polypropylene, PMMA. The second polymer is an amorphous or semi-crystalline polymer. The second polymer is poly trimethylene terephthalate, polypropylene, polyethylene or HDPE. The first polymer is obtained from recycled plastic materials. The continuous interdomain spacing is less than 100 nm. EXAMPLE - Pure PMMA is charged to the extruder until a stable sheet of PMMA 120 mm thick was produced I adequate quantity for testing. The take-up reel speed was increased until 60 mm sheet was to be produced in adequate quantity for testing. PMMA/polypropylene (15:85%) mixture was prepared and fabricated at 60 and 120 mm. Thus formed blended sheet showed draw rate (cm/min), draw range (cm), temperature (0degreesC) average (microns), standard deviation of thickness and area (cm2) as 10, 20, 310, 208.1, 61.5 and 400, respectively.