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	TECHNICAL FEATURES				EXTERNAL SIZE			IMHOFF MONO BLOCK + FILTER (A)	PEDESTRIAN COVERING load 2 ql./mq. (B)		(A) + (B)	DRIVEWAY COVERING LIGHT TRAFF. load 20 ql./mq. (C)		(A) + (C)	DRIVEWAY COVERING HEAVY TRAFF. load 70 ql./mq. (D)		(A) + (D)
Code	Pop. equiv.	Filter Vol. mc,	Imhoff V.sed. lt.	Imhoff V.dig. lt.	Wid. cm.	Len. cm.	Hei. cm.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.	Thick. cm.	Wei. ql.	Wei. ql.
IF-01	1-4	2,66	250	800	160	250	200	63	10	9	72	16	14	77	20	18	81
IF-02	5-6	4,00	300	1200	200	250	200	75	10	11	86	16	19	94	20	22	97
IF-03	7-8	5,33	400	1600	250	250	200	84	10	14	98	16	24	108	20	28	112
IF-04	9-10	6,66	500	2000	250	325	200	106	10	19	125	16	31	137	20	38	144
IF-05	11-12	8,00	600	2400	250	400	200	125	10	23	148	16	38	183	20	46	171
IF-06	13-15	10,00	750	3000	250	450	200	139	10	26	165	16	43	182	20	52	191
IF-07	16-20	13,33	1000	4000	250	550	200	158	10	32	190	16	52	210	20	64	222
IF-08	21-23	15,33	1150	4600	250	650	200	185	10	38	223	16	62	247	20	76	261
IF-09	24-28	18,66	1400	5600	250	750	200	213	10	44	257	16	72	285	20	88	301
IF-10	29-38	25,33	1900	7600	250	950	200	257	10	56	313	16	92	349	20	114	371

All of the products included in the table are branded

FOR HIGHER TREATMENT POTENTIALS, PLEASE CONTACT THE MARKETING DEPARTMENT
THE CAST IRON INSPECTION MANHOLES PLACED ON THE PEDESTRIAN COVERINGS ARE CLASS B125
THE CAST IRON INSPECTION MANHOLES PLACED ON THE 'LIGHT TRAFFIC' DRIVEWAY COVERINGS ARE CLASS C250
THE CAST IRON INSPECTION MANHOLES PLACED ON THE 'HEAVY TRAFFIC' DRIVEWAY COVERINGS ARE CLASS D400
THE FOOTING SHALL HAVE A MINIMIN THICKNESS OF 20 cm, AND SHALL BE REINFORCED WITH DOUBLE ELECTROWELDE 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



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