TECHNOLOGY FOCUS - POLYMERS - Components: The plastic material preferably contains 5-20% (w/w) components A and B. Component B is bonded to component A to change solubility properties component B and becomes insoluble in water and soluble in same organic solvent in which component A is soluble. The SSPB comprises mixture of polymeric substances constituted by organic material bonded to mineral matter. The organic material is mixture of polymeric molecules with molecular weight of 1-500 kDa and dispersion index of 6-53. It contains 37-65% (w/w) carbon and 3-7% (w/w) nitrogen as dry matter, in which nitrogen and carbon are organic carbon and organic nitrogen distributed over functional groups containing 0.1-0.6 mol.% Cal, less than or equal to 0.10 mol.% CN, 0.10 mol.% OMe, 0.1-0.6 mol.% OR, 0.02-0.015 mol.% OCO, less than or equal to 0.30 mol.% Ph, less than or equal to 0.06 PhOH, less than or equal to 0.09 mol.% PhOR/Ar, 0.04-0.30 mol.% COOH, less than or equal to 0.12 mol.% CON, less than or equal to 0.05 mol.% C=O, in which Cal is aliphatic carbon (C) bonded to hydrogen (H) and/or to other aliphatic C and/or to aromatic C; CN is C bonded to amino functional groups; OME is methoxy C, OR is alkoxy C; OCO is anomeric C; Ph is aromatic C bonded to H and/or to other aromatic C and/or to other aliphatic C; PhOH is phenol C; PhOR/Ar is phenoxy C; COOH is carboxylic C; CON is amide C; and C=O is keto C. The mineral fraction comprises less than or equal to 30% (w/w) ash, less than or equal to 3.0% (w/w) silicon, less than or equal to 0.90% (w/w) iron, 0.8% (w/w) aluminum, 1.2% (w/w) magnesium, 6.5% (w/w) calcium, less than or equal to 10% (w/w) potassium, less than or equal to 10% (w/w) sodium, less than or equal to 0.03% (w/w) copper, less than or equal to 0.01% (w/w) nickel, less than or equal to 0.05% (w/w) zinc, less than or equal to 0.003% (w/w) chromium, and less than or equal to 0.01% (w/w) lead. The SSBP comprises 37-65% (w/w) carbon, 3-7% (w/w) nitrogen, less than or equal to 30% (w/w) ash, less than or equal to 3.0% (w/w) silicon, 0.90% (w/w) iron, less than or equal to 0.8% (w/w) aluminum, less than or equal to 1.2% (w/w) magnesium, less than or equal to 6.5% (w/w) calcium, less than or equal to 10% (w/w) potassium, less than or equal to 10% (w/w) sodium, less than or equal to 0.03% (w/w) copper, less than or equal to 0.01% (w/w) nickel, less than or equal to 0.05% (w/w) zinc, less than or equal to 0.003% (w/w) chromium, less than or equal to 0.01% (w/w) lead, and less than or equal to 5 meq/g sulfonic groups. The plastic material have nearly equal melting point upon increasing content of component B, has lower crystallization and higher glass transition temperatures. It has higher Young's modulus and peak stress when concentration of components A and B is at 20%, such that when component B content is less than or equal to 20%, plastic material containing components A and B has lower strain at break and/or higher ion exchange capacity than materials containing component A only. Preferred Component: The component A is polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene-terephthalate, or other polymers containing functional groups including COOH, OH, NH2, CONH, or COOR, preferably copolyethylene-polyvinyl alcohol (PETPVA), copolyesters, polylactone, polyamides, polyamines, polyacrylic acid, or polyalcohols. The neat sulfonated biopolymers component B is water-soluble and comprises 37-65% (w/w) carbon, 3-7% (w/w) nitrogen, less than or equal to 7% (w/w) ash, less than or equal to 3% (w/w) silicon, 0.90% (w/w) iron, less than or equal to 0.8% (w/w) aluminum, less than or equal to 1.2% (w/w) magnesium, less than or equal to 6.5% (w/w) calcium, less than or equal to 10% (w/w) potassium, less than or equal to 10% (w/w) sodium, less than or equal to 0.03 copper, less than or equal to 0.01% (w/w) nickel, less than or equal to 0.05% (w/w) zinc, less than or equal to 0.003% (w/w) chromium, 0.01% (w/w) lead, and less than or equal to 5 meq/g sulfonic groups. Preferred Method: The method preferably comprises mixing components A and B, water and/or plasticizers including but not limited to glycols, polyglycols, diols and polyols to obtain paste; extruding paste in twin screw extruder operating at 300 revolutions per minute at 60-180 degrees C, or pelletizing paste into pellets with humidity of 15%; further processing pellets into film product. The water-soluble biopolymers are produced by hydrolysis, eventually coupled to ozonization by acquiring biowastes of urban, agricultural, forest, agro-industrial, animal and industrial origin, or coal of different ages, including peat or lignite; treating biomass with acid and/or alkali at pH of 2-13, liquid/solid ratio of 1-4, and optionally under ozone at room temperature or heating at less than or equal to 220 degrees C for 2 minutes to 4 hours at atmospheric pressure or in closed vessel under autogenous pressure, in which heating is provided by existing heat exchange with hot fluid, or electrically or by microwave, to obtain solid insoluble residue (SIR) and liquid phase; separating liquid phase by changing pH to obtain precipitate and liquid phase, in which precipitate contains higher molecular weight SBP (HMW-SBP)in solid form, and liquid phase contains lower molecular weight soluble bio-organic products (LMW-SBP), membrane filtration to yield retentate and permeate, in which retentate contains HMW-SBP in solution or in gel form, and permeate contains LMW-SBP, drying liquid phase or solid and liquid phases; treating recovered SIR; and repeating steps to maximize yield of HMW-SBP and LMW-SBP. The SBP is oxidized by ozonization to yield products with lighter color and higher content of carboxylic acids than starting SBP, preferably by flowing ozone in SBP solution, in which SBP starting concentration, ozone flow rate, pH and gas-liquid contact time are optimized to achieve highest product bleaching compatibility with required COOH content and lowest loss of organic material by C mineralization. The SSBPs are produced by sulfonation of BPS or REM with concentrated sulfuric acid, fuming sulfuric acid, or sulfur trioxide in liquid form or complexed with electron donor molecules including dioxane, dimethylsulfoxide, or with sodium sulfite at pH of 2.5-11 and 25-200 degrees C in closed vessel under autogenous pressure. The secondary treatment of washing solution recovered from soil remediation also involves filtering recovered washing solution through micro-, ultra-, nano-porous and/or dialysis membranes to obtain retentate and permeate; and drying and burning retentate to obtain metal concentrate for recycling.