ON THE TREATMENT AND UTILIZATION OF SEWAGE. 



327 



The cost of treatment amounts to .£1200 a year at Leicester for a popula- 

 tion of 89,000 discharging into the sewers. At Ealing, with a population of 

 7500, the annual cost is =£300, and the cost of the jilant for the purpose was 

 ^3000. At Luton, with a population of 18,000, the annual cost is .£500 ; at 

 Cheltenham, with a population of 36,000, it is ^350 ; at TJxbridge, with 

 7000 population, it is £200 ; and at iUton, with 3300 population, it is £46. 



The solid deposit obtained by treating liquid sewage is sold at prices 

 varying from 6d. to 2s. 6J. per ton. At Leicester as much as 5000 tons is 

 produced. At Luton the deposit is mixed with night-soU, at Banbury with 

 street-sweepings, and at Stroud it is made the basis of a manure that is said 

 to be sold at £7 10s. per ton. 



Application of Liquid Sewage for Irrigation.— In only 15 places out of the 

 96 where the water-carriage system of removing excretal refuse is adopted, 

 either generally or partially, is the sewage applied for irrigating land. Of 

 these places 8 are completely sewered ; in 11 of them water-closets are 

 general, and in 2 they are partial. The remaining 7 towns are only partially 

 sewered, and in 3 of these water-closets are general, whUe privies are gene- 

 ral in the other 4 towns. 



The areas of land to which the sewage of these places is applied are shown 

 by the following Table : — - 



Towns. 



^ 



ri ^Edinburgh 

 '^ I Carlisle ... 





Rugby 



Chelmsford . 



Epsom 



Harrow 



Banbury 



Newmarket . 



/'Bedford .... 



Braintree.... 



Malvern 



Population dia- 



eharging into 



sewers. 



Area of 



irrigated 



land. 



2 g f 



U 60 V 



Tenterden 



Birmingham ... 



Chorley 



l_ BuTj St. Edmund's! 



190,000 



31,000 



8,700 



8,500 



4,000 



3,500 



10,800 



3,500 



16,504 



6,000 



5,000 



4,000 



360,000 



13,.300 



14,000 



Acres. 



336 

 110 

 65 

 60 

 30 

 15 

 120 



55 



Arear 

 quired for 

 irrigation 



Acres. 



40 

 to 

 50 



135 

 41 



110 

 50 

 50 



100 



Character. 



134 



Various. 

 Pasture. 

 Grayel&clay. 



Clav. 

 Stiff. 



[soil, 

 Gravel sub- 

 Pasture. 



15 



[gravel. 

 Clay and 

 Clay subsoil. 

 Light. 



Additional land. 



Some in hands of lessee. 



[reach. 



150 acres, too high to 



90 „ 



None. 



14 „ 



100 



46 



The following towns are about to apply their sewage for irrigation, or 

 they contemplate doing so : — 



