NOVELTY - The wastewater streams treatment method comprises injecting sulfur dioxide into the wastewater streams, holding the sulfur dioxide (SO2)-treated wastewater streams for the dwell time required to partially agglomerate wastewater solids, acid leach any heavy metals from the solids into the wastewater stream liquids and disinfect the wastewater stream liquids, separating solids for disposal or reuse from the SO2-treated wastewater stream liquids, and pH adjusting the SO2-treated wastewater liquids to reduce the biocidal properties of any free SO2, bi-sulfite and sulfite.    USE - The method is useful for treatment of wastewater streams containing solids and liquids with organic and macronutrients for growth of plants, algae and photo biomass, which is separated and useful as feedstock for making biofuel, cosmetics and fertilizers, where the recovered treated wastewater is: applied to land for raising crops and to grow feedstock crops for making biofuels; and acidified for absorption into the ground (all claimed).    ADVANTAGE - The method is capable of energy efficiently, economically and rapidly treating wastewater streams containing solids and liquids by chemically treating and recovering wastewater solids and liquids for environmental biological usage and polishing, eliminates potential risk to human health due to exposure to pathogens through proper controlled application procedures and in-situ microbial decomposition, and allows plant operators to control the solids content, nutrient value and other constituents of bio-solids by providing a careful management throughout the entire treatment process.    DETAILED DESCRIPTION - The wastewater streams treatment method comprises injecting sulfur dioxide into the wastewater streams, holding the sulfur dioxide (SO2)-treated wastewater streams for the dwell time required to partially agglomerate wastewater solids, acid leach any heavy metals from the solids into the wastewater stream liquids and disinfect the wastewater stream liquids, separating solids for disposal or reuse from the SO2-treated wastewater stream liquids, pH adjusting the SO2-treated wastewater liquids to reduce the biocidal properties of any free SO2, bi-sulfite and sulfite and provide a pH required for environmental photo biomass/algae biological treatment, and passing the pH adjusted SO2-treated wastewater liquids through an environmental photo biomass/algae biological system to grow photo biomass/algae for separation and reuse and reduce dissolved solids, heavy metals, nutrients, phosphorus and ammonia compounds in the wastewater liquids to provide recovered treated wastewater for reuse. The photo biomass/algae is selected to provide recovered treated wastewater meeting applicable open water discharge limits. Calcium oxide or lime is used to adjust the calcium levels in the recovered treated wastewater to meet soil sodium adsorption ratio (SAR) conditions. The wastewater streams constitute wastewater inflows entering a wastewater treatment plant or treated wastewater resulting from a wastewater treatment plant's processing steps. The environmental photo biomass/algae biological system comprises a wastewater treatment plant's deactivated aerobic and anaerobic digesters and ponds, which are filled and seeded with photo biomass/algae and operated to generate revenues from: the production and sales of photo biomass/algae; sales of treated recovered wastewater; and sales of carbon and biofuel credits. Supplemental nitrogen and phosphorus nutrients are added to the sulfur dioxide-treated wastewater to increase photo biomass/algae growth. Carbon dioxide is injected into the sulfur dioxide treated wastewater to increase algae growth. The solids are separated by passing the sulfur dioxide-treated wastewater through acid resistant porous bags with a mesh sized to collect and separate the sulfur dioxide-treated solids from the sulfur dioxide-treated wastewater placed on a drain pad structured to receive filtrate from the drain bags for subsequent use. The drain pad is movable as needed to treatment locations above flood zones. The photo biomass/algae are selected to consume heavy metals contained in the sulfur-dioxide treated wastewater, leaving a demetalized treated wastewater for reuse. The demetalized treated wastewater is disposed of in water to dilute further its heavy metal concentration.    DESCRIPTION OF DRAWING(S) - The figure shows a layout of the wastewater treatment equipment employing separation bags for solids separation.    Reaction vessel (14)    Separation collection vessel (20)    Separation bags (24)    Bioreactor. (26)