JPS5855089A - Batch type tidal filter bed for treatment of sewage - Google Patents

Abstract

PURPOSE:To promote the growth of bacteria and algae and to improve the efficiency of purification by applying ebb and flow periodically and sequentially to the respective filter beds which are installed in series and parallel and are packed with granular lumps of stone thereby providing both characteristics of immersion filter beds and trickling filter beds. CONSTITUTION:Filter beds in arrays A, B are provided respectively with flow regulating plates 4, and are packed therein with filter media 3 which are granular lumps of stone. The filter beds of the upper and lower stages or the filter beds in the upper stages are connected to water discharge lines via valves 2. The valves 2 are held open to feed the water into the filter beds of the next stages for the time since water is filled full in the filter beds of the upper stages until the water decreases by a prescribed rate. These valves are held closed to increase the volume of the water in the filter beds of the upper stages for the time since the water in the upper stages decreases until the water is filled full in the same. When the water in the filter beds of the arrays A, B decreases to prescribed volume, feeding of water into these beds begins to increase the water therein successively and to start discharging the water to the filter beds in the next stages, whereby the water is decreased successively. The filter beds repeat ebb and tide sequentially and periodically by each array.

Description

[Detailed Description of the Invention] This Takamei has a stepped K11iit' floor for sewage water using one stone grain as the material, and several tanks in series!
Jl the Fjle that I did! The serial shell value is 4r#l
lO elephant RE) e! 'IR #i keep the time essence and time minute K
11th grade sewage is injected * fL s each one row, ☆ Arashi no Tori, l floor is a fixed amount of water reduction or 扛上WeiPtaku0I9I fixed one type! l1
11 times the water was injected into Ichitsumugi, and the water rose one after another, and when the water reached the specified level, water was poured into the #1111000L floor, and the water was poured into the valley P.
The floor is a #IIP floor for sewage treatment and salt treatment, which is characterized by a KIII 4th grade - dry t-an and return for each row.

Immersion bed or water spray PIR using catalytic oxidation using catalytic oxidation is generally used for the final production of P material by constantly flowing a constant amount of wastewater into the immersion PR #i Nagiri Tsukuda, similar to rivers. 11iK was maintained, and the sewage was poured into the ore layer while flowing down, and the water sprinkling method was a method in which the sewage was constantly sprayed onto the Pg that had accumulated in the ore layer tank.

The biggest stain in this book II is placed at 1LJt^, and the stone grain a
By periodically imparting ebb and flow to each l bed with ll and Jjllll, - making it both an immersed l bed, a watering 4P bed, and an O-ambientity, and creating a speculative adjustment society due to ebb and flow. IIIK), which promotes the growth of living things, algae, etc., and improves the efficiency of sewage purification.

First, l1llill and 1, Ii l II K shows 1 difference row 3 crawls - Ii of the floor m1111 i and 4 lines Ii - - Explain the l floor (mul) in general falling in a staircase shape (Mu1) (
Mu a) CJj AT simply A row) and l floor (Bl) C
l1l) (Ill) In addition to installing %A #11 and F floor of B row in parallel,
In the P beds (At) and (Bl) at the top of each row, the tIj powder which has been subjected to the tertiary processing of the Il primary processing ore layer by the switching pulp (1) is injected alternately in batches with a time difference maintained. .^s mR
Each oP floor is different! In addition to installing II flow plate (number), P material (1) of stone granules is filled, and the upper and lower PR or upper RP floors and drainage channel KiIal are filled through the pulp (8). In addition, *The OF floor is opened for the time from the predetermined #11 water volume to the predetermined water reduction amount, the next stage t) PRK water is injected, and the upper stage is closed for the time from the predetermined water reduction volume to the predetermined full water volume. The amount of water in the upper P bed can be increased. That is, An8#
o4) Fff was far below the predetermined amount of water reduction, and after the mine hearth had reached the predetermined full water amount, water injection started and the water increased one after another.
When the predetermined full water level is reached, the next stage OF floor reaches the predetermined level!
After reaching the water level, start draining to the next P floor, and then
end of g. Each P floor is 114M long for each row of pots, and the target is K.
It becomes a vine that returns #a to t14.

Now, as shown in ms-, there is ebb and flow as a hydrocele in the vertical axis tF bed.
Right- as s#&il, ('!'1)l-shuihei threshold,
If (Td) is expressed as the drainage time and % (TO) is the drainage time, and s water volume is expressed as the drainage time, then water is injected into the P bed (Muman) from tl to tl as shown in Figure 4. Damn it, next K
P floor (III) Note from Kt to t3'* Damn it, M B4
The IF floor of kN repeatedly increases and decreases water.Thus, in the A row OF floor, the sewage that has been reduced to 1 bed (mul) from 11 to 1 bed (mul) is transferred to the P floor (mu snow). ) is t hot or bt3m, P
Floor (Mu 3) IIc was injected with water from $3ip to 14 and crushed Mu 04F floor R, and on the 11#1OP floor, 8M
-1sb* 11? t'i floor (lit) ecThe injected wastewater is transferred to P floor (II), K is from 11 to t4, P floor (
111) K is % from t4! ! T? ID1llaKNote*
One row passes through 08P floor 4 times, and the amount of water in one stagnant W water volume of 1 gold P floor circle is 1/1 of the 11 o'clock basin full water.

crow! 1- shows an actual example of 1 parallel 1 bed, steam 41 (
IQ) and (iD) (in) K, self-excited switching pulp (
1) Inject water in batches while maintaining the Kyon* difference,
+wh Kep (80) (ID) (llDI!, #l1
%#l1OF urine, JIItP drops (at) (O
x) (as) s F urine (D t) (ax) (D
a) s as floor (ml) (l snow><ms>top#
CP bed (01) CDI) 1m) K each separately Km through the pulp (wings) mII! tnru O, D, the hearth in 4 of each row is connected to the drainage channel through the pulp (1) as in the first example).

Each pulp (j) is similar to the example shown in Wnl-.
O The bottom of the designated #1 book on one bed on the upper slope.
The upper hearth is opened for a certain period of time, and the upper hearth reaches a certain point kt1 from the predetermined water reduction amount.
iiii The time at which the water weight increases is t.

In other words, the sewage that was temporarily injected into each steam tank (go) and (D) (81) is poured into the ## of the upper row of the water tank for each row of Old and L.
From 4 urine to the next mop, water is poured onto the floor and the water is cyclically ebbed and drained, each time on the floor! It becomes a meandering fist. l! Each P ratio in each 0sDs heat is the third bad o1! ): Books, electricity stagnation, #P water narrowed #f As shown in Figure 6 (high tide, [repeated p feeling, the residue water cover in the 1st basin P floor is always S minute of the 1st basin P) !
To hide IIa.

As shown above (the main axis @ is the aerobic
Ik Shushu activates the m end of the afterlife life wisdom and promotes the assimilation effect of mallets such as mall, moss, etc.
While demonstrating both the effects of the floor, -kaishiki K11JiK
Since most of the O water in the animal's body is replaced, it is possible to efficiently and uniformly drain 9 m of sewage.

[Brief explanation of the drawing]

Attachment 1 shows examples of tidal P bed O based on this power plant.
- is the 31st row 8th P floor O smile inner plane fat, Hatake l - is the 111th
[Longitudinal diagram of 11, 1st is the basic relationship between water volume change and time opening for one bed's 1,000-action vt appearance m-1 4th m is the 1st
*In the example shown in the figure and 2-, the water volume change vs. time relationship diagram, Figure S is 1 with a steam tank j1, parallel 1 continuous P urine 0*
Example flat mail, Figure 6 is the contribution shown in Figure S) 1flK>
This is a diagram of the relationship between the change in the amount of weight and time. In the diagram, (mul) (mu t) (mu 3)...One tail in series, (II l) <mm
) (1m) * * Medium 11#l IDF floor, (01
) (01) (O8) is 0 row t) P floor, (DI) CD
I) CDI) * * e D#11oP floor, (II) (
11) ([0...1 row or floor 1 (1), φ, switching (
Pulp, (ri...Pulp, (3)...P material, (4)1
1SIIJI flowing board, (jso) (ld) (sl)
...Indicates kh'IM. patent applicant

Claims (1)

[Claims] In a filter bed for sewage treatment using stone granules as a filter material, multiple rows of beds are placed in series in order to prevent the step-like gs The upper Pg is kept constant and the next fg water is injected for a minute, each ^, each *O
The G-floor is filled with water at a predetermined amount of water or the predetermined tooth of the upper *F1 floor, and the water is injected into the Taigoshiffl first. Then the water level gradually decreased, and it was 1i! ) The floor is all Km long.
A calligraphy characterized by the return of beak sewage and other tidal hearths.