Water Treatment Products

KREBS® Hydrocyclones for sewage/waste water treatment

KREBS® sewage-degritting cyclones are simple, yet highly effective units for removing grit, sand and other inorganic solids from the primary clarifier and grit chamber underflow streams in sewage treatment plants. These hydrocyclones form the foundation for a sound separation process at minimal cost

Protect downstream equipment with proven, reliable protection

Solid debris such as sand, rocks, glass, trash and other refuse found in sewage plant feed causes abrasive wear on process equipment. Deposited inorganic material can damage and adversely affect the digester operation, causing loss of digester capacity and eventually resulting in a complete plant shutdown for cleaning and renovation.

Features and benefits

■ Involute feed entry delivers high performance efficiency for effective downstream equipment protection

■ High capacity in a small footprint, reducing installation costs

■ Fabricated carbon steel housing for reduced costs

■ Hinged apex housing for easy maintenance and system cleaning access without disconnecting piping

■ Easily replaceable neoprene and gum rubber liners; other liner materials available on request

■ Choice of manually adjustable or fixed apex assembly provides flexibility

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High performance in small footprint

Designed for superior separation and worry-free operation, our sewage-degritting cyclones efficiently remove solids from raw sewage, and they are less expensive than gravity-based sedimentation systems. In fact, these cyclones are designed to remove 95% or more of the grit that is larger than 150 mesh (105 μm) entering the feed inlet. This performance advantage joins the low footprint requirements, resulting in even greater cost savings when accounting for total installed costs compared to gravity systems.

TIME ON
TIME OFF
D6B-12
D10B
D10LB
D15B
D15LB
D20B
D20LB
 
 
(100 GPM)
(200 GPM)
(300 GPM)
(550 GPM)
(600 GPM)
(675 GPM)
(850 GPM)
Continuous
 
144,000
288,000
432,000
792,000
864,000
972,000
1,224,750
30 Min.
30 Min.
72,000
144,000
216,000
396,000
431,000
485,000
611,000
15 Min.
45 Min.
36,000
72,000
108,000
198,000
215,000
242,000
305,000
5 Min.
55 Min.
12,000
19,200
36,000
66,000
72,000
81,000
102,000
5 Min.
2 Hrs.
6,000
12,000
18,000
32,400
35,300
40,000
50,500
5 Min.
3 Hrs.
4,500
9,000
13,500
21,600
23,500
26,500
33,500
5 Min.
4 Hrs.
3,000
6,000
9,000
16,200
17,500
19,500
24,575
5 Min.
6 Hrs.
2,250
4,500
6,750
12,150
13,500
15,200
19,150
5 Min.
8 Hrs.
1,500
3,000
4,500
8,100
8,900
10,000
12,600