JPH0283097A - Apparatus for removing contaminants in excretion or sewage by utilizing single cell chlorophyceae of genus chlamydomonas to obtain drinking water - Google Patents

Abstract

PURPOSE:To obtain drinking water by purifying sewage by lining up a sedimentation separator, an ultraviolet rays and ozone contact tank, a solar system, a growing tank of R. Sager strain 95 being single cell chlorophyceae of the genus Chlamydomonas and a filter. CONSTITUTION:Living waste water such as excretion or sewage is sent to an IN/OFF digester 1 to remove the greater part of suspended substances by sedimentation. Next, when the waste water passes through a filter 2, said waste water is exposed to air therein to remove the particles of suspended substances by sedimentation and further enters a purifying filter 3. Thereafter, bacteria and virus contamination is reduced in an ultraviolet ray and ozone contact tank 4 by ultraviolet rays and ozone. Further, the treated water is sent to a Chlamydomonas growing and contaminant sorbing apparatus 7 through a solar system 6 and passed through fine pores or a centrifugal filter 8 at last. By this method, living waste water is purified to obtain drinking water.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses Chlamydomonas genus unicellular green algae to sorb and remove pollutants such as human waste and sewage.
Concerning equipment for making water.

[Prior art] Methods and equipment for treating pollutants in human waste and sewage, that is, domestic wastewater, have conventionally been mainly biological methods such as activated sludge method, trickling filter method, rotating plate contact method, and contact flushing. However, it is limited to secondary treatment in conjunction with preliminary treatment such as sedimentation and putrefaction, and due to its actual wastewater purification ability, more advanced and inexpensive treatment methods and equipment are needed. desired.

[Problems to be Solved by the Invention] The method and device for treating human waste and sewage pollutants according to the present invention are characterized by the vigorous reproductive ability of single-celled green algae of the genus Chlamydomonas under certain environmental conditions and the superiority of pollutants such as phosphorus and nitrogen. As an alternative to conventional treatment methods,
In addition, it is an innovative method and equipment for treating polluted wastewater that can be used for any scale of wastewater volume as an advanced treatment method that complements conventional treatment methods.

The unicellular green alga of the genus Chlamydomonas used in the present invention is Chlamydomonas reinhardtii (Chlan+y
dononas Re1nhardii), Chlorophyceae (C
hlorophyceae) Ceratophyllidae (VOI
VOCaleS), stock name R Sagger St 1y -
:y 95 (It, Sager 5train 9
5) is a type of unicellular green algae with photosynthetic pigments and whip-shaped flagella, and is ATCC No. 18302. Hereinafter, it will be abbreviated as Chlamydomonas.

[Means for Solving the Problems] The present invention provides an apparatus for removing pollutants such as human waste and sewage using single-celled green algae of the genus Chlamydomonas and obtaining drinking water, which includes precipitation separation for separating spring water from the polluted water. A solar system for keeping polluted water at 24°C to 26°C, a growth tank for Chlamydomonas unicellular green algae Earl Saga Strain 95, and a filter using small holes or centrifugation. This is a device that removes pollutants from polluted water and obtains drinking water.

The currently implemented secondary treatment of domestic wastewater is insufficient in terms of environmental conservation of water bodies, and is causing further environmental damage. In addition to secondary treatment, high-level treatment using chemical methods is not technically possible or is not currently available due to cost issues.

The device according to the present invention, which removes pollutants by pouring domestic wastewater into a culture tank for Ramitomonas, is a system that utilizes the fact that Chlamydomonas has an extremely excellent ability to absorb pollutants and multiplies permanently. It is.

[Effect] Chlamydomonas is extremely prolific under certain environmental conditions (nutrient source, light, carbon dioxide, temperature), and by passing domestic wastewater to be treated into its perishing liquid, single-celled algae can pollute the wastewater. Since it has a strong ability to adsorb substances, it can be easily removed.

Examples will be described below, but the present invention is not limited thereto.

[Example] Example 1 Human waste, sewage, etc. are passed through a pipe using two pumps and transferred to an In+hoff Digester.
er). Here the suspended matter is settled and largely removed.The water then passes by gravity through a filter where it is exposed to air and suspended particles are removed by settling. It then enters a delta filter and is pumped to the next stage of treatment, where it is treated with ultraviolet light and ozone gas to reduce bacterial and viral contamination. After this treatment, the water flows by gravity to the ozone decomposition treatment tank, where the ozone gas is decomposed into oxygen gas. The water is then transferred to the solar system (
temperature between 24° C. and 26° C.) to the Chlamydomonas growth contaminant sorption device, or directly to the Chlamydomonas growth contaminant sorption device without going through the solar system. The direction of this water flow is determined by the temperature of the polluted water. Water passing through the solar system passes through a microporous or centrifugal filter where particulates up to 300 microns are removed. Micropore filters are equipped with an automatic backflow device to remove collected particulates. The polluted water that passes through the solar system is collected in a 10,000-gallon water storage tank. The heated polluted water flows by gravity to the Chlamydomonas growth pollutant sorber where the water is used to grow Chlamydomonas.

The water treated with Chlamydomonas is pumped to a filter where the Chlamydomonas is removed by filtration. Water free of Chlamydomonas flows from the filter to a clean water storage tank. The first filter is backwashed with water from the clean water storage tank, and the backwater containing Chlamydomonas is flushed with evaporated oil.

The above facilities will be automated.

The operation linkage is a flashing method using a switch.

It is connected to a flashing method that controls all operation interlocking, and as a result,
If one operation stops working, the entire device will stop.

The pump in the clarification filter is activated by the reference monitor of the Chlamydomonas reactor sensing a low water reference. At the same time, a second pump in the ozonolysis tank is activated, which also determines whether to heat the contaminated water and send it through the solar system to the Chlamydomonas growth and sorption device or directly. The functioning of the solar system is determined by the temperature of the panel surface, and when various temperature switches are activated in one chamber of the bong, the contaminated water flows through the solar system and then to the Chlamydomonas sorption device.

When the Chlamydomonas reaction and sorption device is filled with contaminated water, the signal from the reference monitor stops, and the pumps of the purification i filter and the ozone decomposition treatment tank stop.

Filtration of Chlamydomonas-treated water continues around the clock.

[Effects of the invention] 1. It is much cheaper than conventional methods and devices for removing pollutants from domestic wastewater.

2. By maintaining the environment in the culture tank under conditions that activate the growth of unicellular green algae of the genus Chlamydomonas, phosphorus, nitrogen, and other substances in polluted water can be removed almost 100%.

3. Single-celled green algae of the genus Chlamydomonas can be produced without limit, and therefore the sorption of resources is unlimited.

[Brief explanation of the drawing]

FIG. 1 is a flow sheet showing an embodiment of the present invention in which polluted water is made into drinking water by removing pollutants using Chlamydomonas. 1... Suspension sedimentation separator, 2... Filter, 3... Purification filter, 4... Ultraviolet rays and ozone contact tank, 5... ... Ozone decomposition treatment tank, 6 ... Solar system, 7 ... Chlamydomonas growth tank, 8 ... Filter by micropore or centrifugation, 9 ... ...Storage tank.

Claims (1)

[Claims] A device that removes pollutants such as human waste and sewage using single-celled green algae of the genus Chlamydomonas and obtains drinking water, which includes a sedimentation separator that separates suspended matter in the polluted water, an ultraviolet ray and ozone contact tank, and a tank that separates the polluted water. A solar system for keeping the temperature at 24°C to 26°C, a growth tank for Chlamydomonas unicellular green algae Earl Saker Strain 95, and a filter using micropores or centrifugal sedimentation to remove pollutants from polluted water. Device for obtaining drinking water.