TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Material: The organic waste is sewage sludge from household sewage treatment plants, sewage sludge from fermentation-related industries, sewage sludge from paper manufacturing industries, sewage sludge from sugar manufacturing industries, and/or sewage sludge from food factories. The first substrate and the second substrate are an artificial substrate or an organic waste. The artificial substrate includes glucose, fructose, xylose, sucrose, maltose, and/or starch. The carrier is a microporous adsorbent.Preferred Process: The organic waste undergoes a pretreatment comprising heating, acclimation, and/or treatment with a pH adjusting agent so that the hydrogen-producing anaerobic bacteria present in the organic waste are dominant. The reactor is placed in an anaerobic state by evacuation or by filling the reactor with an inert gas.Preferred Parameter: The organic waste is subjected to a heat pretreatment at 90-100degreesC for 30-60 minutes. It is subjected to a pretreatment using an acidic pH adjusting agent to have a pH of 3-5 or using a basic pH adjusting agent to have a pH of 10-12. The first agitation speed and the second agitation speed are 15-20 rpm. The second substrate is fed into the reactor at a hydraulic retention time of 0.5-8 hours and an organic loading rate of 5-80 g chemical oxygen demand (COD)/L/h.Preferred Property: The microporous adsorbent has a particle size less than 44 microns.Preferred Device: The reactor is a continuous stirred tank reactor, an anaerobic sequencing batch reactor, an anaerobic baffled bioreactor, a carrier-induced granular sludge bed, an upflow anaerobic sludge blanket, and/or an expanded granular sludge bed.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The acidic pH adjusting agent is hydrochloric acid, sulfuric acid, and/or nitric acid. The basic pH adjusting agent is sodium hydroxide (NaOH), potassium hydroxide (KOH), lithium hydroxide (LiOH), calcium hydroxide (Ca(OH)2), and/or magnesium hydroxide (Mg(OH)2). The microporous adsorbent is powdered activated carbon, powdered diatomaceous earth, and/or zeolite. The inert gas is helium, argon, neon, krypton, and/or xenon.