Phosphorus removing agent containing inorganic mineral and application method thereof

A technology of inorganic minerals and phosphorus removal agent, applied in the field of water treatment research, can solve the problem of low phosphorus removal rate, and achieve the effect of good phosphorus removal effect, fast reaction time and good treatment effect

Active Publication Date: 2015-01-21
SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are many studies on the removal of inorganic phosphorus, but ther

Method used

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  • Phosphorus removing agent containing inorganic mineral and application method thereof

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Example Embodiment

[0029] Example 1

[0030] Take 2000mg of inorganic mineral-containing phosphorus removal agent as an example, which is made by fully mixing 1400mg polyaluminum chloride (PAC), 400mg bentonite, and 200mg ferrous sulfate, in which polyaluminum chloride (PAC) accounts for 70% of the total mass , Bentonite accounts for 20%, and ferrous sulfate accounts for 10%.

[0031] The phosphorus removal agent was dissolved in water at a mass concentration of 2% and mixed well before each use.

[0032] Take 1L of the prepared sewage quality of the simulated circulating water system, add the above-mentioned inorganic mineral-containing phosphorus removal agent according to the dosage in Table 2, stir for 1min, stand at room temperature for 30min, and then take the supernatant and use molybdate for color comparison Method for analysis, the analysis results are all based on PO 4 3- The results are shown in Table 2.

[0033] Table 2 shows the water quality analysis results after adding phosphorus remova...

Example Embodiment

[0036] Example 2

[0037] Take 2000mg inorganic mineral-containing phosphorus removal agent as an example, which is made by fully mixing 1200mg polyaluminum chloride (PAC), 500mg bentonite, and 300mg ferrous sulfate, in which polyaluminum chloride (PAC) accounts for 60% of the total mass , Bentonite accounts for 25%, and ferrous sulfate accounts for 15%.

[0038] The phosphorus removal agent was dissolved in water at a mass concentration of 2% and mixed well before each use.

[0039] Take 1L of the prepared sewage quality of the simulated circulating water system, add the above-mentioned inorganic mineral-containing phosphorus removal agent according to the dosage in Table 3, stir for 1min, stand at room temperature for 30min, then take the supernatant and use molybdate for colorimetry Method for analysis, the analysis results are all based on PO 4 3- The results are shown in Table 3.

[0040] Table 3 shows the analysis results of sewage quality after adding phosphorus removal agent ...

Example Embodiment

[0043] Example 3

[0044] Take 2000mg inorganic mineral-containing phosphorus removal agent as an example, which is made by fully mixing 1200mg polyaluminum chloride (PAC), 600mg diatomaceous earth, and 200mg ferrous sulfate, in which polyaluminum chloride (PAC) accounts for the total mass 60%, diatomaceous earth accounts for 30%, ferrous sulfate accounts for 10%.

[0045] The phosphorus removal agent was dissolved in water at a mass concentration of 2% and mixed well before each use.

[0046] Take 1L of the prepared sewage quality of the simulated circulating water system, add the above-mentioned inorganic mineral-containing phosphorus removal agent according to the dosage in Table 4, stir for 1min, stand at room temperature for 30min, then take the supernatant and use molybdate for colorimetry Method for analysis, the analysis results are all based on PO 4 3- The results are shown in Table 4.

[0047] Table 4 shows the analysis results of sewage quality after adding phosphorus remo...

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Abstract

The invention relates to a phosphorus removing agent containing inorganic mineral and an application method thereof. The phosphorus removing agent contains 50-75% of an aluminium-containing compound, 15-30% of an inorganic mineral adsorbent and 10-20% of an iron-containing compound, and also can be compounded with a B component. By the use of the phosphorus removing agent, inorganic phosphorus and organic phosphorus in wastewater are removed effectively. By the addition of the inorganic mineral adsorbent, phosphates are fully adsorbed, and the inorganic mineral adsorbent can be combined with iron hydroxide and dried aluminium hydroxide gel generated during the reaction. Thus, more phosphates and pollutants in water can be adsorbed to form larger floc, and settling and flocculation processes are accelerated. Through the synergistic effect of substances, a better phosphorus removing effect is achieved. The phosphorus removing agent has a very good effect of processing orthophosphate, polyphosphates and organic phosphorus and especially has a function of efficiently removing organic phosphorus. In addition, the application method of the phosphorus removing agent is simple.

Description

technical field [0001] The invention belongs to the technical field of water treatment research, and in particular relates to a phosphorus removal agent containing inorganic minerals and a use method thereof. Background technique [0002] Phosphorus pollution has become an important part of environmental pollution. In natural water bodies and wastewater systems, phosphorus almost exists in the form of various phosphates, which are divided into orthophosphate, polyphosphate (pyrophosphate, metaphosphate and polyphosphates) and organically bound phosphates. [0003] Phosphorus in sewage mainly comes from the detergents used in people's daily life, and the production wastewater discharged from the production process of some factories. These large amounts of wastewater are discharged into rivers, lakes and seas without treatment or under the condition that the treatment is not up to standard, causing pollution to water bodies. The pollution of phosphorus to water bodies is mai...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/28C02F1/58
CPCC02F1/281C02F1/5236C02F1/58
Inventor 张国辉杨鸿鹰王丽莉胡静郭一平南粉益高小媛张哲
Owner SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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