T/CI 176-2022 Active Group standards

T/CI 176-2022 Paddy straw/Polyaluminium chloride composite water treatment material

Publish Date: 2022-12-29 Implement Date: 2022-12-29 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CI 176-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Integrated Environmental Protection

ICS Name: Water treatment agents

Publish Date: 2022-12-29

Implement Date: 2022-12-29

Scope

Scope: This document specifies the terms and definitions, classification, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of straw/polyaluminum chloride composite water treatment materials. This document applies to composite water treatment materials made from straw and fly ash as the main raw materials using the hydrothermal liquid phase method. This document does not apply to other special-function biomass composite water treatment materials. Main Technical Content: 3.1 Raw Material Requirements The raw material for producing straw/polyaluminum chloride composite water treatment materials shall be rice straw; fly ash that meets the requirements of GB/T 1596 shall be used; hydrochloric acid shall be an industrial-grade synthetic hydrochloric acid that meets the requirements of GB/T 320; and industrial-grade sodium hydroxide that meets the requirements of GB/T 209-2018 shall be used. 3.2 Technical Requirements 3.2.1 Appearance: Solid straw/polyaluminum chloride composite water treatment materials: light yellow to yellow granules or powder. 3.2.2 The indicators of straw/polyaluminum chloride composite water treatment materials shall meet the requirements of Table 1. Table 1 Technical Indicators of Composite Materials Indicator Indicator Straw Mass Fraction /% ≥ 40 Aluminum Oxide (Al2O3) Mass Fraction /% ≥ 10 Particle Size /μm ≤ 50 Basicity /% 60–90 Insoluble Matter Mass Fraction /% ≤ 20 4. Test Methods 4.1 Sampling Take a certain amount of solid straw/polyaluminum chloride composite water treatment materials and conduct tests on their appearance, particle size, insoluble matter, Al2O3 content, basicity, and ash content. 4.2 General Provisions In this standard, atomic absorption spectrometry and atomic fluorescence spectrometry shall use ultra-pure reagents, and the water shall meet the requirements of Grade II water specified in GB/T 6682; other test methods shall use analyti