Filter body for cleaning contaminated surface water in the form of a ground profile acting as a filter

A filter integrated into the landscape has one or more layers including profiles for purifying contaminated surface water and is made from specified materials, while having specified characteristics. A filter integrated into the landscape has one or more layers including profiles for purifying contaminated surface water and: (a) is made from the following materials : sand-like loam to loam-like sand (excavated soil, soil from boring or waste minerals); humus waste; green cuttings (e.g. from trees or grass); bark; wood (including scrap); pulp or lignin waste; sawdust or wood shavings; agricultural crop or other waste; communal sludge; crushed stone; mineral washings or gravel; river or pond sludge; mineral or coal dust; or clay (including crude or processed bentonite or zeolites) optionally with additives comprising gypsum, chalk, dolomite, magnesite, magnesium sulfate monohydrate, Epsom salts, crude phosphate, potassium sulfate or polyacrylamide; and (b) has the following characteristics : coarse pores (above 10 mu ) = 20-35 volume %; medium pores (10-0.2 mu ) = 13-27 volume %; fine pores (below 0.2 mu ) = 8-15 volume %; colloidal flocculation in aqueous suspensions at the longest 3 (sic); Kh value (cohesion number) per zone = 30-85; clay content = 3-30; pH (KCl or CaCl2) = 6.8- 8.5; cation exchange capacity = above 30 (LiCl method), above 100 (BaCl2) and above 75 (CaCl2), each per kg dry weight; water-soluble ion maximum concentrations (mg/kg dry weight) Al = 0.71, As = 0.02, Na = 71, Cl = 71, PO4 = 0.5, Fe = 10, Mn = 0.53, CN = 0.02, F = 0.53, NO2 = 0.35, NO3 = 18, Co =1.0, Pb = 0.033, Cd =0.003, Cr = 0.03, Cu = 0.06, Ni = 0.03, Hg = 0.001, Zn =1.8, B = 0.6, CN (sic) = 0.05, NH4 = 0.33, SO4 = 250, V = 0.06, Ti = 0.01, Se = 0.15 and Mo = 0.018; water-soluble carbon on filtering = below 250 mg/kg dry weight; exchangeable Ca, Mg, K, Na, NH4, Al and H ions as a percentage of cation-exchange capacity : Layer A Ca 65-90, Mg 10-20, K 1.5-6 and Na 0-4, B and C layers Ca 70-95, Mg 5-20, K 0.2-6 and Na 0-3; chalk content = 5-80% on dry weight; humus content for filter earth : layer A 3-18% and layers B and C up to 5%; C/N ratio = 9-16; and pore gas composition CO2 : O2 : CH4 = (1-5) : (10-20) : (below 0.5) in layer A and (2-18) : (below 0.5) : (below 1) in layers B and C (water content at ca. 2 bar capillary pressure). Filterkörper in Form eines als Filter wirkenden, in die Landschaft integrierten, ein oder mehrere Bodenhorizonte (A-,B-,C-Lagen) umfassenden Bodenp