FRP Septic Tank

FRP Septic Tank,Fiberglass Septic Tanks,FRP clarification tank,GRP sewage aerobic septic tank,Fiberglass Anaerobic digestion

FRP septic tank Theory:

FRP septic tank is a kind of treating device which adopts depositing and anaerobic fermentation theory to eliminate the suspended organic matters in the water. There are a lot of night soil, waste paper, and protozoon in the sanitary sewage. The concentration for suspended solid is 100~350mg/L; concentration for organics is BOD100~400mg/L, therein the concentration for suspended organics is BOD5 50~200mg/L. 50%~60% suspended matters can be eliminated by the depositing in the clarification tank for 12~24h.The anaerobic digestion of slurry deposited can make the organics release into stable inorganic; raw sludge change into mature sludge, which change the structure of sludge, reduce the water content of sludge. It can be cleaned and conveyed out to be buried or service as fertilizer.

FRP Septic Tank Characteristics :

—High compress resistance
—Small area occupied. Only 60 % of traditional tank.
—Convenient installation. Batched produced; light weight; high suitability for site; low construction cost.
—Permanent leakage resistance; good sealing property. Integral fabrication; it is leakage resistance, which avoid the pollution to under ground water damage to building.
—Good environment protection; easy for clean.
—Low economic index. The price is 20% lower than concrete & steel clarification tank, equal to the clarification tank of bricks. So FRP clarification tank is economic products and get the good reputation from real estate company and construction company.
—Durable. It is made of high polymer materials, aging resistant, free from deformation, acid& alkali resistant, corrosion resistant, long service life as buildings, which avoid the condition that traditional clarification tank can suit the acid sewage.

Design list			hospital, nursing home, kinder garden	residential houses, travel, dormitory	office building, teaching building, living area in factories
	Type	capacity（m³）	Allowable No. of user
1		2	20-30	40	80
2		4	40-60	90	160
3		6	60-90	130	230
4		9	90-135	200	340
5		12	120-180	260	460
6		16	160-240	350	620
7		20	200-300	450	775
8		25	250-375	540	950
9		30	300-450	660	1160
10		40	400-600	885	1550
11		50	500-750	1070	1800
12		75	750-1125	1600	2800
13		100	1000-1500	2200	3750

Effective Volume and Size

Effective Volume （m³）		3	5	7	10	13	15
Size	L（mm）	1600	1900	2800	4000	4400	4750
Size	D（mm）	1500	1800	1800	1800	2000	2000

Effective Volume （m³）		20	25	30	35	40	45	50
Size	L（mm）	6250	7900	7900	7750	6700	7300	8200
Size	D（mm）	2000	2000	2200	2400	2800	2800	2800

Installation

1, Horizontal net distance between the tank base and building shall not be less than 2 times of the distance between the tank base and building base.

2, For the base of clarification tank, we generally lay sand of 50-100mm on the natural soil, and check the balance. Special treatment is for special foundation.

3, construction procedures
Get the water level→ dig a foundation & drain the underground water→ get water level for the padding layer of foundation and solid it→ fill water to clarification tank→ backfill layer by layer→ build the bricks and connect it with the well →site primary acceptance

A, Get the water level and dig a foundation. Lay the lime line and dig the foundation according to the size shown on the drawing, and it shall meet the national stipulations about construction mode. When the height of underground water is high, water must be drained.

B, Padding layer of foundation: 50-100mm thick sand is serves as the padding layer. Pick up the sharp bricks or stones, get the water level and solid it. Prepare the installation of clarification tank.

C, Installation：
1) small sized crane is better for small tank.(Or install it by labor)
2) water level for padding layer must be checked before crane
3) pay attention to the direction of inlet and outlet. The direction of arrow is outlet. Check it weather meets the requirement of drawing.
4) elevation of clarification must meet the requirement of drawing.
5) After crane, check the water level.

D, Feed water to clarification tank. After installation, the water height in the tank shall be higher than the height of underground water.

E, Back fill layer by layer: construction garbage is forbidden to serve as back fill soil. Big sized sharp stones in the back fill soil shall be eliminated. Tamp the back fill soil layer by layer. Each layer is 300mm. Tamp it by labor is better. Partial shock is forbidden. The stipulation about back fill construction shall be strictly followed, and surrounded area must be tamped hard.

F, Build connecting well. After the back fill is qualified, build the connecting well according to the drawing. The padding layer in the bottom of well shall be tamped, then fill concrete to the bottom of well. Drainage channel is needed for well, and the elevation must be strictly executed.

G, primary acceptance：
1) Inlet & outlet can be built into the wall of well directly, and the suitable diameter is 150-200mm. The gap between out pipe wall and well wall can be filled with 1:2 or 1:3 cement mortar.
2) The maxi diameter of inlet of well is 200mm; butt joint for the ceiling of pipe is adapted for inspection door.
3) Construction and household garbage is forbidden to be poured out after the primary completion of project.

Digg FRP Septic Tank Gully Backfill Fiberglass Septic Tank Gully

Fiberglass Septic Tank Burried Installed the drainage pipe

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