Ultra-pure Water Treatment Malaysia | Liquid Treatment Malaysia | Leachate Treatment Malaysia | Fixed Aerated Submerged Biofilm Malaysia

Al-Jazari project is a CSR program in collaboration between RAF and NOEC to basically providing a clean and safe to drink water to whoever in needful especially during a natural disaster situation such as earth quake, flooding, prolong draught etc. Al-Jazari project also was completed a test to reclaim used ablution water (musta’mal) from Masjid Zaid Bin Haritsah in Gombak Selangor to become a ‘mutlaq’ water reaching equivalent to national drinking water quality standard. These will enable muslim to save a substantial amount of wudhu water during ablution before their sholat through water recover system.

Al-Jazari is actually a mobile ultra pure water treatment system and can be able to deploy to any natural disaster site location due to its compactness, chemical less, powered by solar and modular. The technology were based on submerge reinforce hollow fiber ultra filtration concept and wholly constructed in Malaysia.

One of the main issue with landfill leachate is the ammonia nitrogen content. It is extremly high, very hard to digest in conventional biological treatment as well as not commercially viable to undergo with any advance oxidation scheme.

RAF MK-ll is using a biological means to collect and cultivate the nitrifying bacteria which prone to degrade ammoniacal nitrogen in landfill leachate through nitrification-denitrification process. A pumps operate as roughing filter recycle pumps, which re-circulate the leachate through the roughing filter tower housing the engineered media. The roughing filter tank is aerated by means of subsurface fine pore diffusers which aid in maintaining a residual dissolved oxygen level as well as keeping the contents of the tank completely mixed. The leachate is applied on the surface of the media by a uniform static distributor system. Uniform distribution of the leachate aids in optimum usage of the media surface and uniform treatment.The process depends on biochemical oxidation of complex organics in the wastewater to carbon dioxide and water with a portion oxidized for energy used to sustain and promote the growth of filter organisms. Soon after a filter is placed in operation, the surface of the media becomes coated with a viscous, jelly like substance containing bacteria and other biota. Organic removal occurs by absorption and assimilation by the biota of soluble and suspended constituents. After the initial start-up period, the microbial build-up creates an anaerobic interface with some of the filter media, thus causing the growth of facultative and anaerobic organisms at upper microbial surfaces and forms the basic mechanism for organic removal.

Fixed Aerated Submerged Biofilm (FASB) is a common method to treat liquid containing organic and has been use in industrial application for many years. FASB combines both biological treatment and solids removal in one submerged, aerated reactor. Over the last decade, biological aerated filters have been developed not only as competitors for other secondary treatment systems such as trickling filters and activated sludge plants but also as tertiary treatment systems.

The process starts with the gravity river inlet to the biological pretreatment utilizing physical screen, coarse and fine, to address the river debris such as plastic bag, grass, cigarette butt etc from entering the biological reactor. The seeding tank is provided to receive the return sludge from the clarifier as well as to seed a biomass during the testing and commissioning stage. The flow is then entering six (6) compartments of bioreactor in plug flow mode. Soon after a filter is placed in operation, the surface of the plastic bottle media becomes coated with a viscous, jelly like substance containing bacteria and other biota. Organic removal occurs by absorption and assimilation by the biota of soluble and suspended constituents. Oxygen for the aerobic biological metabolism is supplied from the fine bubble diffuser at the bottom of the reactor. After the initial start-up period, the microbial build-up creates an anaerobic interface with some of the filter media, thus causing the growth of facultative and anaerobic organisms at upper microbial surfaces and forms the basic mechanism for organic removal. The quality of biological slime produced is controlled by the available food. The growth will increase as the organic load increases until a maximum effective thickness is reached. This maximum growth is controlled by physical factors including hydraulic dosage rate, type of media, type of organic matter, amount of essential nutrients present, temperature and nature of the particular biological slime. Once the maximum thickness is exceeded, the slime is wash off as small particles of bio-mass that are settle down in the sedimentation basin.