The "GAZEBO" PERCOLATOR FILTERS, prefabricated in vibrated reinforced concrete, are monobloc and made from RcK > 400 kg/sq cm concrete, vibrated on metal caissons and steam cured, reinforced with internal ribs, open face, with total elimination of porosity and gravel nests, with internal steel reinforcement with upgraded adhesion and electrically-welded square mesh type FeB 44K, factory tested, in compliance with Anti-earthquake law Cat. 1. These are then filled inside with black isotactic polypropylene. These products have been designed to meet the requirements of housing complexes, the wastewaters of which do not flow into the municipal sewage network, and are the result of long experience in the field of sewage treatment.

GAZEBO S.p.A. has combined an Imhoff tank with the percolator filter (aerobic or anaerobic), thereby obtaining an inexpensive and functional treatment plant without any management costs. The bulk isotactic polypropylene filling bodies, which represent the support on which the bacterial flora that metabolise pollutants will grow, have shown themselves to be especially suitable because they do not cause blockages, do not putrefy and are lightweight (dry weight 38 kg/cu m), easy to use and feature large surfaces with a high degree of vacuum - vacuum percentage 95% and surfaces above 140 sq m/cu m compared to vacuum percentages of 40% and surfaces below 60 sq m / cu m of stone materials.

The large vacuum volume permits reducing the dimensions of the percolator filter; these special materials permit adopting loads of 1.000 l/inhabitant, without any fear of blockages and with BOD5 reductions above 60-70%.

Companies, state and private institutes.

Housing complexes and industrial facilities.

Driveway/pedestrian coverings - man-hole covers, holes, special materials (stainless steel) and treatments (painting).

TYPE			EXTERNAL SIZE			FILTRO AEROBIC (A)	PEDESTRIAN COVERING load 2ql./mq. (B)		(A) + (B)	DRIVEWAY COVERING LIGHT TRAFFIC load 20ql./mq. (C)		(A) + (C)	DRIVEWAY COVERING HEAVY TRAFFIC load 70ql/mq. (D)		(A) + (D)
Code	Pop. equiv.		Wid. cm.	Len. cm.	Height cm.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.
	V filter 0,66 mc./p.e.
FA-01	1-4		140	160	200	40	10	5	45	16	8	48	20	10	50
FA-02	5-6		160	250	200	58	10	9	67	16	14	72	20	18	76
FA-03	7-8		160	290	200	63	10	10	73	16	17	80	20	20	83
FA-04	9-10		200	250	200	64	10	11	75	16	19	83	20	22	86
FA-05	11-12		250	250	200	73	10	14	87	16	24	97	20	28	101
FA-06	13-16		250	325	200	95	10	19	114	16	31	126	20	38	133
FA-07	17-20		250	400	200	114	10	23	137	16	38	152	20	46	160
FA-08	21-23		250	450	200	128	10	26	154	16	43	171	20	52	180
FA-09	24-28		250	550	200	147	10	32	179	16	52	199	20	64	211
FA-10	29-34		250	650	200	174	10	38	212	16	62	236	20	76	250
FA-11	35-39		250	750	200	202	10	44	246	16	72	274	20	88	290
FA-12	40-48		250	950	200	246	10	56	302	16	92	338	20	114	360

All of the products included in the table are branded

FOR HIGHER TREATMENT POTENTIALS, PLEASE CONTACT THE MARKETING DEPARTMENT
PEDESTRIAN COVERINGS ARE PROVIDED WITH CLASS B125 CAST IRON OR STEEL PLATE INSPECTION MANHOLES
LIGHT TRAFFIC DRIVEWAY COVERINGS ARE PROVIDED WITH CLASS C250 CAST IRON INSPECTION MANHOLES
HEAVY TRAFFIC DRIVEWAY COVERINGS ARE PROVIDED WITH CLASS D400 CAST IRON INSPECTION MANHOLES
THE FOOTING SHALL BE AT LEAS 20 cm THICK AND SHALL BE REINFORCED WITH A DOUBLE ELECTROWELDED STEEL MESHWORK, diam. 8 mm., mesh 20x20 cm.
A 3-5 cm THICK SAND LAYER SHALL BE PLACED ABOVE THE FOOTING TO LAY THE PREFABRICATED STRUCTURES
IN CASE OF FLAT LAND, THE AEROBIC PERCOLATOR FILTER CAN BE, UPON REQUEST, PROVIDED WITH SUBMERGIBLE ELECTROPUMP TO LIFT/POUR WASTEWATER



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