Environmental Sciences Europe

Table 2 List of investigated sewage sludges 1–15 with element contents in g/kg related to dry matter

From: Determination of the phosphorus content in sewage sludge: comparison of different aqua regia digestion methods and ICP-OES, ICP-MS, and photometric determination

Sludge no	WWTP	P	Ca	C	Fe
1	1	19	24	432	35
2	1	22	26	417	43
3	2	36	33	266	44
4	3	21	150	203	42
5	4	21	187	193	50
6	4	17	196	218	38
7	5	17	239	168	35
8	5	22	12	332	26
9	7	23	20	310	14
10	8	17	8	423	15
11	8	24	11	401	18
12	9	17	207	160	43
13	10	20	34	324	30
14	11	38	34	371	10
15	Sludge mixture	26	115	282	35

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