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Hydroponic plant screening method for indoor formaldehyde purification

A technology for hydroponic plants and screening methods, which is applied in the direction of testing plants/trees, analyzing gas mixtures, measuring devices, etc., and can solve the problems of hydroponic plant blanks without forming a screening system, without purification of formaldehyde, and formaldehyde

Active Publication Date: 2017-10-20
NANJING GUOHAO DECORATION INSTALLATION ENG
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Problems solved by technology

However, the existing plant purification is mainly based on soil culture plants, with soil and soil microorganisms as the main body of absorption, and there is still a gap in the hydroponic plants for purifying formaldehyde
In terms of the screening of existing plant species, only the purification rate and physiological and biochemical indicators of common plants were tested intensively, but on the basis of the data, a satisfactory value range for plant formaldehyde purification was not formed, let alone a complete screening system

Method used

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  • Hydroponic plant screening method for indoor formaldehyde purification
  • Hydroponic plant screening method for indoor formaldehyde purification

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Embodiment

[0027] A method for screening hydroponic plants for indoor formaldehyde purification, comprising the following steps:

[0028] Step 1: Prepare several different types of hydroponic plants to be screened: hydroponic Scherichia chinensis, hydroponic calla lily, hydroponic green radish, hydroponic white crane lily, hydroponic hanging bamboo plum, hydroponic Boston fern, each type Hydroponic plants are placed in air formaldehyde concentrations of 0, 10mg / m 3 , 50mg / m 3 , 100mg / m 3 In each fumigation box, place no less than three pots of the same hydroponic plant of the same size, cultivate for a week, the temperature is 20-25°C, the indoor natural light is diffused, and a room without hydroponic plants is set up. The fumigation box was used as a blank control.

[0029] Step 2: At a formaldehyde concentration of 10mg / m 3 After 10 hours, measure the formaldehyde concentration C1 in the air, calculate the damage rate H1 of hydroponic plants, and record the effective purification ...

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Abstract

The invention discloses a hydroponic plant screening method for indoor formaldehyde purification and belongs to the field of hydroponic plants. The screening method of plant types suitable for formaldehyde purification is comprehensively discussed from three aspects of purifying capacity, resisting capacity and recovering capacity of the hydroponic plants by means of five indexes: effective purifying rate, old leaf damage time, formaldehyde dehydrogenase activity, malondialdehyde content and recovery growth state. The indexes and formulae are optimized based on a lot of tests to form a set of accurate screening steps, a computing method and a data range, so that the screened hydroponic plants can efficiently purify formaldehyde and grow normally.

Description

technical field [0001] The invention relates to the field of hydroponic plants, in particular to a screening method for hydroponic plants used for indoor formaldehyde purification. Background technique [0002] With the improvement of people's quality of life, the decoration of living room and office space is becoming more and more common, but the formaldehyde in the decoration materials has the characteristics of long-term release. According to the survey, within half a year of decoration, the rate of formaldehyde exceeding the standard in the living room reaches 60%-80%. The meeting room and office are close to 100%, and after three years of decoration, the exceeding standard rate is still above 50%. Formaldehyde can cause body discomfort, such as throat discomfort, cough, chest tightness, headache, emphysema, nasopharyngeal carcinoma, etc. Therefore, effective removal of formaldehyde has important application requirements. [0003] Common methods for removing formaldehy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0004G01N33/0098
Inventor 顾兵祝遵崚高磊火艳袁高松王丽萍徐宏图朱文玉
Owner NANJING GUOHAO DECORATION INSTALLATION ENG
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